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Vulnerability from cleanstart
Published
2026-05-18 13:50
Modified
2026-05-02 09:28
Summary
Security fixes for CVE-2026-26958, CVE-2026-33186, CVE-2026-33815, CVE-2026-33816, CVE-2026-34986, CVE-2026-39883, ghsa-78h2-9frx-2jm8, ghsa-9jj7-4m8r-rfcm, ghsa-fw7p-63qq-7hpr, ghsa-hfvc-g4fc-pqhx, ghsa-j88v-2chj-qfwx, ghsa-mh2q-q3fh-2475, ghsa-p77j-4mvh-x3m3 applied in versions: 1.29.6-r0
Details
Multiple security vulnerabilities affect the temporal-server package. These issues are resolved in later releases. See references for individual vulnerability details.
References
{
"affected": [
{
"package": {
"ecosystem": "CleanStart",
"name": "temporal-server"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
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}
],
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}
]
}
],
"credits": [],
"database_specific": {},
"details": "Multiple security vulnerabilities affect the temporal-server package. These issues are resolved in later releases. See references for individual vulnerability details.",
"id": "CLEANSTART-2026-PM06830",
"modified": "2026-05-02T09:28:01Z",
"published": "2026-05-18T13:50:42.038073Z",
"references": [
{
"type": "ADVISORY",
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},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-26958"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-33186"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-33815"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-33816"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-34986"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/CVE-2026-39883"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/ghsa-78h2-9frx-2jm8"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/ghsa-9jj7-4m8r-rfcm"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/ghsa-fw7p-63qq-7hpr"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/ghsa-hfvc-g4fc-pqhx"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/ghsa-j88v-2chj-qfwx"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/ghsa-mh2q-q3fh-2475"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/ghsa-p77j-4mvh-x3m3"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-26958"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33186"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33815"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33816"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34986"
},
{
"type": "WEB",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39883"
}
],
"related": [],
"schema_version": "1.7.3",
"summary": "Security fixes for CVE-2026-26958, CVE-2026-33186, CVE-2026-33815, CVE-2026-33816, CVE-2026-34986, CVE-2026-39883, ghsa-78h2-9frx-2jm8, ghsa-9jj7-4m8r-rfcm, ghsa-fw7p-63qq-7hpr, ghsa-hfvc-g4fc-pqhx, ghsa-j88v-2chj-qfwx, ghsa-mh2q-q3fh-2475, ghsa-p77j-4mvh-x3m3 applied in versions: 1.29.6-r0",
"upstream": [
"CVE-2026-26958",
"CVE-2026-33186",
"CVE-2026-33815",
"CVE-2026-33816",
"CVE-2026-34986",
"CVE-2026-39883",
"ghsa-78h2-9frx-2jm8",
"ghsa-9jj7-4m8r-rfcm",
"ghsa-fw7p-63qq-7hpr",
"ghsa-hfvc-g4fc-pqhx",
"ghsa-j88v-2chj-qfwx",
"ghsa-mh2q-q3fh-2475",
"ghsa-p77j-4mvh-x3m3"
]
}
CVE-2026-26958 (GCVE-0-2026-26958)
Vulnerability from cvelistv5 – Published: 2026-02-19 23:01 – Updated: 2026-02-20 15:39
VLAI?
EPSS
Title
filippo.io/edwards25519 MultiScalarMult function produces invalid results or undefined behavior if receiver is not the identity
Summary
filippo.io/edwards25519 is a Go library implementing the edwards25519 elliptic curve with APIs for building cryptographic primitives. In versions 1.1.0 and earlier, MultiScalarMult produces invalid results or undefined behavior if the receiver is not the identity point. If (*Point).MultiScalarMult is called on an initialized point that is not the identity point, it returns an incorrect result. If the method is called on an uninitialized point, the behavior is undefined. In particular, if the receiver is the zero value, MultiScalarMult returns an invalid point that compares Equal to every other point. Note that MultiScalarMult is a rarely used, advanced API. For example, users who depend on filippo.io/edwards25519 only through github.com/go-sql-driver/mysql are not affected. This issue has been fixed in version 1.1.1.
Severity ?
CWE
- CWE-665 - Improper Initialization
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/FiloSottile/edwards25519/secur… | x_refsource_CONFIRM |
| https://github.com/FiloSottile/edwards25519/commi… | x_refsource_MISC |
| https://github.com/FiloSottile/edwards25519/relea… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| FiloSottile | filippo.io/edwards25519 |
Affected:
< 1.1.1
|
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CVE-2026-33186 (GCVE-0-2026-33186)
Vulnerability from cvelistv5 – Published: 2026-03-20 22:23 – Updated: 2026-03-24 18:09
VLAI?
EPSS
Title
gRPC-Go has an authorization bypass via missing leading slash in :path
Summary
gRPC-Go is the Go language implementation of gRPC. Versions prior to 1.79.3 have an authorization bypass resulting from improper input validation of the HTTP/2 `:path` pseudo-header. The gRPC-Go server was too lenient in its routing logic, accepting requests where the `:path` omitted the mandatory leading slash (e.g., `Service/Method` instead of `/Service/Method`). While the server successfully routed these requests to the correct handler, authorization interceptors (including the official `grpc/authz` package) evaluated the raw, non-canonical path string. Consequently, "deny" rules defined using canonical paths (starting with `/`) failed to match the incoming request, allowing it to bypass the policy if a fallback "allow" rule was present. This affects gRPC-Go servers that use path-based authorization interceptors, such as the official RBAC implementation in `google.golang.org/grpc/authz` or custom interceptors relying on `info.FullMethod` or `grpc.Method(ctx)`; AND that have a security policy contains specific "deny" rules for canonical paths but allows other requests by default (a fallback "allow" rule). The vulnerability is exploitable by an attacker who can send raw HTTP/2 frames with malformed `:path` headers directly to the gRPC server. The fix in version 1.79.3 ensures that any request with a `:path` that does not start with a leading slash is immediately rejected with a `codes.Unimplemented` error, preventing it from reaching authorization interceptors or handlers with a non-canonical path string. While upgrading is the most secure and recommended path, users can mitigate the vulnerability using one of the following methods: Use a validating interceptor (recommended mitigation); infrastructure-level normalization; and/or policy hardening.
Severity ?
9.1 (Critical)
CWE
- CWE-285 - Improper Authorization
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/grpc/grpc-go/security/advisori… | x_refsource_CONFIRM |
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CVE-2026-33815 (GCVE-0-2026-33815)
Vulnerability from cvelistv5 – Published: 2026-04-07 15:19 – Updated: 2026-05-14 16:04
VLAI?
EPSS
Title
CVE-2026-33815 in github.com/jackc/pgx
Summary
Memory-safety vulnerability in github.com/jackc/pgx/v5.
Severity ?
9.8 (Critical)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://pkg.go.dev/vuln/GO-2026-4771 |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| github.com/jackc/pgx/v5 | github.com/jackc/pgx/v5/pgproto3 |
Affected:
0 , < 5.9.0
(semver)
|
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CVE-2026-33816 (GCVE-0-2026-33816)
Vulnerability from cvelistv5 – Published: 2026-04-07 15:19 – Updated: 2026-05-14 16:04
VLAI?
EPSS
Title
CVE-2026-33816 in github.com/jackc/pgx
Summary
Memory-safety vulnerability in github.com/jackc/pgx/v5.
Severity ?
9.8 (Critical)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://pkg.go.dev/vuln/GO-2026-4772 |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| github.com/jackc/pgx/v5 | github.com/jackc/pgx/v5/pgproto3 |
Affected:
0 , < 5.9.0
(semver)
|
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CVE-2026-34986 (GCVE-0-2026-34986)
Vulnerability from cvelistv5 – Published: 2026-04-06 16:22 – Updated: 2026-04-07 14:21
VLAI?
EPSS
Title
Go JOSE affect by a panic in JWE decryption
Summary
Go JOSE provides an implementation of the Javascript Object Signing and Encryption set of standards in Go, including support for JSON Web Encryption (JWE), JSON Web Signature (JWS), and JSON Web Token (JWT) standards. Prior to 4.1.4 and 3.0.5, decrypting a JSON Web Encryption (JWE) object will panic if the alg field indicates a key wrapping algorithm (one ending in KW, with the exception of A128GCMKW, A192GCMKW, and A256GCMKW) and the encrypted_key field is empty. The panic happens when cipher.KeyUnwrap() in key_wrap.go attempts to allocate a slice with a zero or negative length based on the length of the encrypted_key. This code path is reachable from ParseEncrypted() / ParseEncryptedJSON() / ParseEncryptedCompact() followed by Decrypt() on the resulting object. Note that the parse functions take a list of accepted key algorithms. If the accepted key algorithms do not include any key wrapping algorithms, parsing will fail and the application will be unaffected. This panic is also reachable by calling cipher.KeyUnwrap() directly with any ciphertext parameter less than 16 bytes long, but calling this function directly is less common. Panics can lead to denial of service. This vulnerability is fixed in 4.1.4 and 3.0.5.
Severity ?
7.5 (High)
CWE
- CWE-248 - Uncaught Exception
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/go-jose/go-jose/security/advis… | x_refsource_CONFIRM |
| https://pkg.go.dev/github.com/go-jose/go-jose/v4#… | x_refsource_MISC |
Impacted products
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},
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}
CVE-2026-39883 (GCVE-0-2026-39883)
Vulnerability from cvelistv5 – Published: 2026-04-08 20:26 – Updated: 2026-04-10 20:52
VLAI?
EPSS
Title
OpenTelemetry-Go has an incomplete fix for CVE-2026-24051: BSD kenv command not using absolute path enables PATH hijacking
Summary
OpenTelemetry-Go is the Go implementation of OpenTelemetry. From 1.15.0 to 1.42.0, the fix for CVE-2026-24051 changed the Darwin ioreg command to use an absolute path but left the BSD kenv command using a bare name, allowing the same PATH hijacking attack on BSD and Solaris platforms. This vulnerability is fixed in 1.43.0.
Severity ?
CWE
- CWE-426 - Untrusted Search Path
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/open-telemetry/opentelemetry-g… | x_refsource_CONFIRM |
| http://github.com/open-telemetry/opentelemetry-go… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| open-telemetry | opentelemetry-go |
Affected:
>= 1.15.0, < 1.43.0
|
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GHSA-78H2-9FRX-2JM8
Vulnerability from github – Published: 2026-04-03 03:28 – Updated: 2026-04-06 23:11
VLAI?
Summary
Go JOSE Panics in JWE decryption
Details
Impact
Decrypting a JSON Web Encryption (JWE) object will panic if the alg field indicates a key wrapping algorithm (one ending in KW, with the exception of A128GCMKW, A192GCMKW, and A256GCMKW) and the encrypted_key field is empty. The panic happens when cipher.KeyUnwrap() in key_wrap.go attempts to allocate a slice with a zero or negative length based on the length of the encrypted_key.
This code path is reachable from ParseEncrypted() / ParseEncryptedJSON() / ParseEncryptedCompact() followed by Decrypt() on the resulting object. Note that the parse functions take a list of accepted key algorithms. If the accepted key algorithms do not include any key wrapping algorithms, parsing will fail and the application will be unaffected.
This panic is also reachable by calling cipher.KeyUnwrap() directly with any ciphertext parameter less than 16 bytes long, but calling this function directly is less common.
Panics can lead to denial of service.
Fixed In
4.1.4 and v3.0.5
Workarounds
If the list of keyAlgorithms passed to ParseEncrypted() / ParseEncryptedJSON() / ParseEncryptedCompact() does not include key wrapping algorithms (those ending in KW), your application is unaffected.
If your application uses key wrapping, you can prevalidate to the JWE objects to ensure the encrypted_key field is nonempty. If your application accepts JWE Compact Serialization, apply that validation to the corresponding field of that serialization (the data between the first and second .).
Thanks
Thanks to Datadog's Security team for finding this issue.
Severity ?
7.5 (High)
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"ecosystem": "Go",
"name": "github.com/go-jose/go-jose/v4"
},
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}
],
"aliases": [
"CVE-2026-34986"
],
"database_specific": {
"cwe_ids": [
"CWE-248"
],
"github_reviewed": true,
"github_reviewed_at": "2026-04-03T03:28:56Z",
"nvd_published_at": "2026-04-06T17:17:11Z",
"severity": "HIGH"
},
"details": "### Impact\n\nDecrypting a JSON Web Encryption (JWE) object will panic if the `alg` field indicates a key wrapping algorithm ([one ending in `KW`](https://pkg.go.dev/github.com/go-jose/go-jose/v4#pkg-constants), with the exception of `A128GCMKW`, `A192GCMKW`, and `A256GCMKW`) and the `encrypted_key` field is empty. The panic happens when `cipher.KeyUnwrap()` in `key_wrap.go` attempts to allocate a slice with a zero or negative length based on the length of the `encrypted_key`.\n\nThis code path is reachable from `ParseEncrypted()` / `ParseEncryptedJSON()` / `ParseEncryptedCompact()` followed by `Decrypt()` on the resulting object. Note that the parse functions take a list of accepted key algorithms. If the accepted key algorithms do not include any key wrapping algorithms, parsing will fail and the application will be unaffected.\n\nThis panic is also reachable by calling `cipher.KeyUnwrap()` directly with any `ciphertext` parameter less than 16 bytes long, but calling this function directly is less common.\n\nPanics can lead to denial of service.\n\n### Fixed In\n\n4.1.4 and v3.0.5\n\n### Workarounds\n\nIf the list of `keyAlgorithms` passed to `ParseEncrypted()` / `ParseEncryptedJSON()` / `ParseEncryptedCompact()` does not include key wrapping algorithms (those ending in `KW`), your application is unaffected.\n\nIf your application uses key wrapping, you can prevalidate to the JWE objects to ensure the `encrypted_key` field is nonempty. If your application accepts JWE Compact Serialization, apply that validation to the corresponding field of that serialization (the data between the first and second `.`).\n\n### Thanks\n\nThanks to Datadog\u0027s Security team for finding this issue.",
"id": "GHSA-78h2-9frx-2jm8",
"modified": "2026-04-06T23:11:46Z",
"published": "2026-04-03T03:28:56Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/go-jose/go-jose/security/advisories/GHSA-78h2-9frx-2jm8"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34986"
},
{
"type": "PACKAGE",
"url": "https://github.com/go-jose/go-jose"
},
{
"type": "WEB",
"url": "https://pkg.go.dev/github.com/go-jose/go-jose/v4#pkg-constants"
}
],
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"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "Go JOSE Panics in JWE decryption"
}
GHSA-9JJ7-4M8R-RFCM
Vulnerability from github – Published: 2026-04-07 18:31 – Updated: 2026-04-16 21:31
VLAI?
Summary
Memory-safety vulnerability in github.com/jackc/pgx/v5.
Details
Memory-safety vulnerability in github.com/jackc/pgx/v5.
Severity ?
9.8 (Critical)
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},
"details": "Memory-safety vulnerability in github.com/jackc/pgx/v5.",
"id": "GHSA-9jj7-4m8r-rfcm",
"modified": "2026-04-16T21:31:34Z",
"published": "2026-04-07T18:31:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33816"
},
{
"type": "PACKAGE",
"url": "https://github.com/jackc/pgx"
},
{
"type": "WEB",
"url": "https://pkg.go.dev/vuln/GO-2026-4772"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Memory-safety vulnerability in github.com/jackc/pgx/v5."
}
GHSA-FW7P-63QQ-7HPR
Vulnerability from github – Published: 2026-02-18 22:37 – Updated: 2026-02-20 16:46
VLAI?
Summary
filippo.io/edwards25519 MultiScalarMult produces invalid results or undefined behavior if receiver is not the identity
Details
(*Point).MultiScalarMult failed to initialize its receiver.
If the method was called on an initialized point that is not the identity point, MultiScalarMult produced an incorrect result.
If the method was called on an uninitialized point, the behavior was undefined. In particular, if the receiver was the zero value, MultiScalarMult returned an invalid point that compared Equal to every point.
Note that MultiScalarMult is a rarely used advanced API. For example, if you only depend on filippo.io/edwards25519 via github.com/go-sql-driver/mysql, you are not affected. If you were notified of this issue despite not being affected, consider switching to a vulnerability scanner that is more precise and respectful of your attention, like govulncheck.
Severity ?
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "filippo.io/edwards25519"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.1.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-26958"
],
"database_specific": {
"cwe_ids": [
"CWE-665"
],
"github_reviewed": true,
"github_reviewed_at": "2026-02-18T22:37:15Z",
"nvd_published_at": "2026-02-19T23:16:26Z",
"severity": "LOW"
},
"details": "`(*Point).MultiScalarMult` failed to initialize its receiver.\n\nIf the method was called on an initialized point that is not the identity point, MultiScalarMult produced an incorrect result.\n\nIf the method was called on an uninitialized point, the behavior was undefined. In particular, if the receiver was the zero value, MultiScalarMult returned an invalid point that compared Equal to every point.\n\n*Note that MultiScalarMult is a rarely used advanced API. For example, if you only depend on `filippo.io/edwards25519` via `github.com/go-sql-driver/mysql`, **you are not affected**. If you were notified of this issue despite not being affected, consider switching to a vulnerability scanner that is more precise and respectful of your attention, like [govulncheck](https://go.dev/doc/tutorial/govulncheck).*",
"id": "GHSA-fw7p-63qq-7hpr",
"modified": "2026-02-20T16:46:42Z",
"published": "2026-02-18T22:37:15Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/FiloSottile/edwards25519/security/advisories/GHSA-fw7p-63qq-7hpr"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-26958"
},
{
"type": "WEB",
"url": "https://github.com/FiloSottile/edwards25519/commit/d1c650afb95fad0742b98d95f2eb2cf031393abb"
},
{
"type": "PACKAGE",
"url": "https://github.com/FiloSottile/edwards25519"
},
{
"type": "WEB",
"url": "https://github.com/FiloSottile/edwards25519/releases/tag/v1.1.1"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U",
"type": "CVSS_V4"
}
],
"summary": "filippo.io/edwards25519 MultiScalarMult produces invalid results or undefined behavior if receiver is not the identity"
}
GHSA-HFVC-G4FC-PQHX
Vulnerability from github – Published: 2026-04-08 19:22 – Updated: 2026-04-09 14:29
VLAI?
Summary
opentelemetry-go: BSD kenv command not using absolute path enables PATH hijacking
Details
Summary
The fix for GHSA-9h8m-3fm2-qjrq (CVE-2026-24051) changed the Darwin ioreg command to use an absolute path but left the BSD kenv command using a bare name, allowing the same PATH hijacking attack on BSD and Solaris platforms.
Root Cause
sdk/resource/host_id.go line 42:
if result, err := r.execCommand("kenv", "-q", "smbios.system.uuid"); err == nil {
Compare with the fixed Darwin path at line 58:
result, err := r.execCommand("/usr/sbin/ioreg", "-rd1", "-c", "IOPlatformExpertDevice")
The execCommand helper at sdk/resource/host_id_exec.go uses exec.Command(name, arg...) which searches $PATH when the command name contains no path separator.
Affected platforms (per build tag in host_id_bsd.go:4): DragonFly BSD, FreeBSD, NetBSD, OpenBSD, Solaris.
The kenv path is reached when /etc/hostid does not exist (line 38-40), which is common on FreeBSD systems.
Attack
- Attacker has local access to a system running a Go application that imports
go.opentelemetry.io/otel/sdk - Attacker places a malicious
kenvbinary earlier in$PATH - Application initializes OpenTelemetry resource detection at startup
hostIDReaderBSD.read()callsexec.Command("kenv", ...)which resolves to the malicious binary- Arbitrary code executes in the context of the application
Same attack vector and impact as CVE-2026-24051.
Suggested Fix
Use the absolute path:
if result, err := r.execCommand("/bin/kenv", "-q", "smbios.system.uuid"); err == nil {
On FreeBSD, kenv is located at /bin/kenv.
Severity ?
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 1.42.0"
},
"package": {
"ecosystem": "Go",
"name": "go.opentelemetry.io/otel/sdk"
},
"ranges": [
{
"events": [
{
"introduced": "1.15.0"
},
{
"fixed": "1.43.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-39883"
],
"database_specific": {
"cwe_ids": [
"CWE-426"
],
"github_reviewed": true,
"github_reviewed_at": "2026-04-08T19:22:12Z",
"nvd_published_at": "2026-04-08T21:17:00Z",
"severity": "HIGH"
},
"details": "## Summary\n\nThe fix for GHSA-9h8m-3fm2-qjrq (CVE-2026-24051) changed the Darwin `ioreg` command to use an absolute path but left the BSD `kenv` command using a bare name, allowing the same PATH hijacking attack on BSD and Solaris platforms.\n\n## Root Cause\n\n`sdk/resource/host_id.go` line 42:\n\n if result, err := r.execCommand(\"kenv\", \"-q\", \"smbios.system.uuid\"); err == nil {\n\nCompare with the fixed Darwin path at line 58:\n\n result, err := r.execCommand(\"/usr/sbin/ioreg\", \"-rd1\", \"-c\", \"IOPlatformExpertDevice\")\n\nThe `execCommand` helper at `sdk/resource/host_id_exec.go` uses `exec.Command(name, arg...)` which searches `$PATH` when the command name contains no path separator.\n\nAffected platforms (per build tag in `host_id_bsd.go:4`): DragonFly BSD, FreeBSD, NetBSD, OpenBSD, Solaris.\n\nThe `kenv` path is reached when `/etc/hostid` does not exist (line 38-40), which is common on FreeBSD systems.\n\n## Attack\n\n1. Attacker has local access to a system running a Go application that imports `go.opentelemetry.io/otel/sdk`\n2. Attacker places a malicious `kenv` binary earlier in `$PATH`\n3. Application initializes OpenTelemetry resource detection at startup\n4. `hostIDReaderBSD.read()` calls `exec.Command(\"kenv\", ...)` which resolves to the malicious binary\n5. Arbitrary code executes in the context of the application\n\nSame attack vector and impact as CVE-2026-24051.\n\n## Suggested Fix\n\nUse the absolute path:\n\n if result, err := r.execCommand(\"/bin/kenv\", \"-q\", \"smbios.system.uuid\"); err == nil {\n\nOn FreeBSD, `kenv` is located at `/bin/kenv`.",
"id": "GHSA-hfvc-g4fc-pqhx",
"modified": "2026-04-09T14:29:41Z",
"published": "2026-04-08T19:22:12Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-hfvc-g4fc-pqhx"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39883"
},
{
"type": "PACKAGE",
"url": "https://github.com/open-telemetry/opentelemetry-go"
},
{
"type": "WEB",
"url": "http://github.com/open-telemetry/opentelemetry-go/releases/tag/v1.43.0"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "opentelemetry-go: BSD kenv command not using absolute path enables PATH hijacking"
}
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
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- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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