RHSA-2026:37094
Vulnerability from csaf_redhat - Published: 2026-07-09 04:49 - Updated: 2026-07-21 22:19Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
Severity
Important
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs:
mariadb11.8:
* mariadb-11.8.8-3.hum1 (aarch64, x86_64)
* mariadb-backup-11.8.8-3.hum1 (aarch64, x86_64)
* mariadb-client-utils-11.8.8-3.hum1 (noarch)
* mariadb-common-11.8.8-3.hum1 (noarch)
* mariadb-connect-engine-11.8.8-3.hum1 (aarch64, x86_64)
* mariadb-cracklib-password-check-11.8.8-3.hum1 (aarch64, x86_64)
* mariadb-devel-11.8.8-3.hum1 (aarch64, x86_64)
* mariadb-embedded-11.8.8-3.hum1 (aarch64, x86_64)
* mariadb-embedded-devel-11.8.8-3.hum1 (aarch64, x86_64)
* mariadb-errmsg-11.8.8-3.hum1 (noarch)
* mariadb-gssapi-server-11.8.8-3.hum1 (aarch64, x86_64)
* mariadb-oqgraph-engine-11.8.8-3.hum1 (aarch64, x86_64)
* mariadb-pam-11.8.8-3.hum1 (aarch64, x86_64)
* mariadb-rocksdb-engine-11.8.8-3.hum1 (x86_64)
* mariadb-s3-engine-11.8.8-3.hum1 (aarch64, x86_64)
* mariadb-server-11.8.8-3.hum1 (aarch64, x86_64)
* mariadb-server-galera-11.8.8-3.hum1 (aarch64, x86_64)
* mariadb-server-utils-11.8.8-3.hum1 (noarch)
* mariadb-sphinx-engine-11.8.8-3.hum1 (aarch64, x86_64)
* mariadb-test-11.8.8-3.hum1 (aarch64, x86_64)
* mariadb11.8-11.8.8-3.hum1.src (src)
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in urllib3, an HTTP client library for Python. When using the low-level API via `ProxyManager.connection_from_url().urlopen()` with `assert_same_host=False`, cross-origin redirects can still forward sensitive headers. This could allow a remote attacker to gain unauthorized access to sensitive information.
5.9 (Medium)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:mariadb11-8-main@aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:mariadb11-8-main@noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:mariadb11-8-main@src | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:mariadb11-8-main@x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
A remote attacker can exploit this by providing specially crafted BER/CER/DER-encoded ASN.1 data with a large exponent in the REAL value. When the application subsequently prints, logs, compares, or performs arithmetic on the decoded value, this can cause excessive CPU and memory consumption, leading to a denial of service (DoS).
7.5 (High)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:mariadb11-8-main@aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:mariadb11-8-main@noarch | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:mariadb11-8-main@src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:mariadb11-8-main@x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
References
18 references
{
"document": {
"aggregate_severity": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"text": "Important"
},
"category": "csaf_security_advisory",
"csaf_version": "2.0",
"distribution": {
"text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
}
},
"lang": "en",
"notes": [
{
"category": "summary",
"text": "An update for Red Hat Hardened Images RPMs is now available.",
"title": "Topic"
},
{
"category": "general",
"text": "This update includes the following RPMs:\n\nmariadb11.8:\n * mariadb-11.8.8-3.hum1 (aarch64, x86_64)\n * mariadb-backup-11.8.8-3.hum1 (aarch64, x86_64)\n * mariadb-client-utils-11.8.8-3.hum1 (noarch)\n * mariadb-common-11.8.8-3.hum1 (noarch)\n * mariadb-connect-engine-11.8.8-3.hum1 (aarch64, x86_64)\n * mariadb-cracklib-password-check-11.8.8-3.hum1 (aarch64, x86_64)\n * mariadb-devel-11.8.8-3.hum1 (aarch64, x86_64)\n * mariadb-embedded-11.8.8-3.hum1 (aarch64, x86_64)\n * mariadb-embedded-devel-11.8.8-3.hum1 (aarch64, x86_64)\n * mariadb-errmsg-11.8.8-3.hum1 (noarch)\n * mariadb-gssapi-server-11.8.8-3.hum1 (aarch64, x86_64)\n * mariadb-oqgraph-engine-11.8.8-3.hum1 (aarch64, x86_64)\n * mariadb-pam-11.8.8-3.hum1 (aarch64, x86_64)\n * mariadb-rocksdb-engine-11.8.8-3.hum1 (x86_64)\n * mariadb-s3-engine-11.8.8-3.hum1 (aarch64, x86_64)\n * mariadb-server-11.8.8-3.hum1 (aarch64, x86_64)\n * mariadb-server-galera-11.8.8-3.hum1 (aarch64, x86_64)\n * mariadb-server-utils-11.8.8-3.hum1 (noarch)\n * mariadb-sphinx-engine-11.8.8-3.hum1 (aarch64, x86_64)\n * mariadb-test-11.8.8-3.hum1 (aarch64, x86_64)\n * mariadb11.8-11.8.8-3.hum1.src (src)",
"title": "Details"
},
{
"category": "legal_disclaimer",
"text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
"title": "Terms of Use"
}
],
"publisher": {
"category": "vendor",
"contact_details": "https://access.redhat.com/security/team/contact/",
"issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
"name": "Red Hat Product Security",
"namespace": "https://www.redhat.com"
},
"references": [
{
"category": "self",
"summary": "https://access.redhat.com/errata/RHSA-2026:37094",
"url": "https://access.redhat.com/errata/RHSA-2026:37094"
},
{
"category": "external",
"summary": "https://images.redhat.com/",
"url": "https://images.redhat.com/"
},
{
"category": "external",
"summary": "https://access.redhat.com/security/updates/classification/",
"url": "https://access.redhat.com/security/updates/classification/"
},
{
"category": "external",
"summary": "https://access.redhat.com/security/cve/CVE-2026-59886",
"url": "https://access.redhat.com/security/cve/CVE-2026-59886"
},
{
"category": "external",
"summary": "https://access.redhat.com/security/cve/CVE-2026-44431",
"url": "https://access.redhat.com/security/cve/CVE-2026-44431"
},
{
"category": "self",
"summary": "Canonical URL",
"url": "https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_37094.json"
}
],
"title": "Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update",
"tracking": {
"current_release_date": "2026-07-21T22:19:24+00:00",
"generator": {
"date": "2026-07-21T22:19:24+00:00",
"engine": {
"name": "Red Hat SDEngine",
"version": "5.3.7"
}
},
"id": "RHSA-2026:37094",
"initial_release_date": "2026-07-09T04:49:53+00:00",
"revision_history": [
{
"date": "2026-07-09T04:49:53+00:00",
"number": "1",
"summary": "Initial version"
},
{
"date": "2026-07-18T05:32:03+00:00",
"number": "2",
"summary": "Last updated version"
},
{
"date": "2026-07-21T22:19:24+00:00",
"number": "3",
"summary": "Last generated version"
}
],
"status": "final",
"version": "3"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_name",
"name": "Red Hat Hardened Images",
"product": {
"name": "Red Hat Hardened Images",
"product_id": "Red Hat Hardened Images",
"product_identification_helper": {
"cpe": "cpe:/a:redhat:hummingbird:1"
}
}
}
],
"category": "product_family",
"name": "Red Hat Hardened Images"
},
{
"branches": [
{
"category": "product_version",
"name": "mariadb11-8-main@aarch64",
"product": {
"name": "mariadb11-8-main@aarch64",
"product_id": "mariadb11-8-main@aarch64",
"product_identification_helper": {
"purl": "pkg:rpm/redhat/mariadb@11.8.8-3.hum1?arch=aarch64\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-aarch64-rpms"
}
}
}
],
"category": "architecture",
"name": "aarch64"
},
{
"branches": [
{
"category": "product_version",
"name": "mariadb11-8-main@x86_64",
"product": {
"name": "mariadb11-8-main@x86_64",
"product_id": "mariadb11-8-main@x86_64",
"product_identification_helper": {
"purl": "pkg:rpm/redhat/mariadb@11.8.8-3.hum1?arch=x86_64\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-x86_64-rpms"
}
}
}
],
"category": "architecture",
"name": "x86_64"
},
{
"branches": [
{
"category": "product_version",
"name": "mariadb11-8-main@noarch",
"product": {
"name": "mariadb11-8-main@noarch",
"product_id": "mariadb11-8-main@noarch",
"product_identification_helper": {
"purl": "pkg:rpm/redhat/mariadb-client-utils@11.8.8-3.hum1?arch=noarch\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-x86_64-rpms"
}
}
}
],
"category": "architecture",
"name": "noarch"
},
{
"branches": [
{
"category": "product_version",
"name": "mariadb11-8-main@src",
"product": {
"name": "mariadb11-8-main@src",
"product_id": "mariadb11-8-main@src",
"product_identification_helper": {
"purl": "pkg:rpm/redhat/mariadb11.8@11.8.8-3.hum1?arch=src\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-source-rpms"
}
}
}
],
"category": "architecture",
"name": "src"
}
],
"category": "vendor",
"name": "Red Hat"
}
],
"relationships": [
{
"category": "default_component_of",
"full_product_name": {
"name": "mariadb11-8-main@aarch64 as a component of Red Hat Hardened Images",
"product_id": "Red Hat Hardened Images:mariadb11-8-main@aarch64"
},
"product_reference": "mariadb11-8-main@aarch64",
"relates_to_product_reference": "Red Hat Hardened Images"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "mariadb11-8-main@noarch as a component of Red Hat Hardened Images",
"product_id": "Red Hat Hardened Images:mariadb11-8-main@noarch"
},
"product_reference": "mariadb11-8-main@noarch",
"relates_to_product_reference": "Red Hat Hardened Images"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "mariadb11-8-main@src as a component of Red Hat Hardened Images",
"product_id": "Red Hat Hardened Images:mariadb11-8-main@src"
},
"product_reference": "mariadb11-8-main@src",
"relates_to_product_reference": "Red Hat Hardened Images"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "mariadb11-8-main@x86_64 as a component of Red Hat Hardened Images",
"product_id": "Red Hat Hardened Images:mariadb11-8-main@x86_64"
},
"product_reference": "mariadb11-8-main@x86_64",
"relates_to_product_reference": "Red Hat Hardened Images"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2026-44431",
"cwe": {
"id": "CWE-201",
"name": "Insertion of Sensitive Information Into Sent Data"
},
"discovery_date": "2026-05-13T17:01:41.663622+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2477167"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in urllib3, an HTTP client library for Python. When using the low-level API via `ProxyManager.connection_from_url().urlopen()` with `assert_same_host=False`, cross-origin redirects can still forward sensitive headers. This could allow a remote attacker to gain unauthorized access to sensitive information.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "urllib3: urllib3: Information disclosure via cross-origin redirects forwarding sensitive headers",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"Red Hat Hardened Images:mariadb11-8-main@aarch64",
"Red Hat Hardened Images:mariadb11-8-main@noarch",
"Red Hat Hardened Images:mariadb11-8-main@src",
"Red Hat Hardened Images:mariadb11-8-main@x86_64"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-44431"
},
{
"category": "external",
"summary": "RHBZ#2477167",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2477167"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-44431",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-44431"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-44431",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44431"
},
{
"category": "external",
"summary": "https://github.com/urllib3/urllib3/security/advisories/GHSA-qccp-gfcp-xxvc",
"url": "https://github.com/urllib3/urllib3/security/advisories/GHSA-qccp-gfcp-xxvc"
}
],
"release_date": "2026-05-13T15:20:24.588000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-07-09T04:49:53+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
"product_ids": [
"Red Hat Hardened Images:mariadb11-8-main@aarch64",
"Red Hat Hardened Images:mariadb11-8-main@noarch",
"Red Hat Hardened Images:mariadb11-8-main@src",
"Red Hat Hardened Images:mariadb11-8-main@x86_64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:37094"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"products": [
"Red Hat Hardened Images:mariadb11-8-main@aarch64",
"Red Hat Hardened Images:mariadb11-8-main@noarch",
"Red Hat Hardened Images:mariadb11-8-main@src",
"Red Hat Hardened Images:mariadb11-8-main@x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "urllib3: urllib3: Information disclosure via cross-origin redirects forwarding sensitive headers"
},
{
"cve": "CVE-2026-59886",
"cwe": {
"id": "CWE-770",
"name": "Allocation of Resources Without Limits or Throttling"
},
"discovery_date": "2026-07-14T17:01:19.689422+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2500041"
}
],
"notes": [
{
"category": "description",
"text": "A remote attacker can exploit this by providing specially crafted BER/CER/DER-encoded ASN.1 data with a large exponent in the REAL value. When the application subsequently prints, logs, compares, or performs arithmetic on the decoded value, this can cause excessive CPU and memory consumption, leading to a denial of service (DoS).",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "pyasn1: pyasn1: Denial of Service via crafted ASN.1 REAL values",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This flaw in pyasn1, rated as Important, could lead to a denial of service in Red Hat products that process untrusted ASN.1 data. A remote attacker could send a specially crafted BER, CER, or DER encoded REAL value with a large exponent, causing applications to consume excessive resources during decoding operations such as printing, logging, or arithmetic, thereby rendering the service unavailable.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"Red Hat Hardened Images:mariadb11-8-main@aarch64",
"Red Hat Hardened Images:mariadb11-8-main@noarch",
"Red Hat Hardened Images:mariadb11-8-main@src",
"Red Hat Hardened Images:mariadb11-8-main@x86_64"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-59886"
},
{
"category": "external",
"summary": "RHBZ#2500041",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2500041"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-59886",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-59886"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-59886",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59886"
},
{
"category": "external",
"summary": "https://github.com/pyasn1/pyasn1/commit/e60c691cb91addb8fcefa2f537e85ede6fb1e886",
"url": "https://github.com/pyasn1/pyasn1/commit/e60c691cb91addb8fcefa2f537e85ede6fb1e886"
},
{
"category": "external",
"summary": "https://github.com/pyasn1/pyasn1/releases/tag/v0.6.4",
"url": "https://github.com/pyasn1/pyasn1/releases/tag/v0.6.4"
},
{
"category": "external",
"summary": "https://github.com/pyasn1/pyasn1/security/advisories/GHSA-hm4w-wwcw-mr6r",
"url": "https://github.com/pyasn1/pyasn1/security/advisories/GHSA-hm4w-wwcw-mr6r"
}
],
"release_date": "2026-07-14T16:38:29.691000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-07-09T04:49:53+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
"product_ids": [
"Red Hat Hardened Images:mariadb11-8-main@aarch64",
"Red Hat Hardened Images:mariadb11-8-main@noarch",
"Red Hat Hardened Images:mariadb11-8-main@src",
"Red Hat Hardened Images:mariadb11-8-main@x86_64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:37094"
},
{
"category": "workaround",
"details": "When processing untrusted ASN.1 data with pyasn1, avoid calling prettyPrint(), str(), float(), int(), or performing comparisons or arithmetic on decoded Real (ASN.1 REAL type) objects. Instead, inspect the raw (mantissa, base, exponent) tuple directly. Where logging decoded ASN.1 structures is necessary, filter out or sanitize Real-typed values before conversion.",
"product_ids": [
"Red Hat Hardened Images:mariadb11-8-main@aarch64",
"Red Hat Hardened Images:mariadb11-8-main@noarch",
"Red Hat Hardened Images:mariadb11-8-main@src",
"Red Hat Hardened Images:mariadb11-8-main@x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"Red Hat Hardened Images:mariadb11-8-main@aarch64",
"Red Hat Hardened Images:mariadb11-8-main@noarch",
"Red Hat Hardened Images:mariadb11-8-main@src",
"Red Hat Hardened Images:mariadb11-8-main@x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "pyasn1: pyasn1: Denial of Service via crafted ASN.1 REAL values"
}
]
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- 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.
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
Loading…
Loading…