CVE-2026-33816 (GCVE-0-2026-33816)
Vulnerability from cvelistv5 – Published: 2026-04-07 15:19 – Updated: 2026-04-15 15:49
VLAI?
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
| URL | Tags | |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| github.com/jackc/pgx/v5 | github.com/jackc/pgx/v5/pgproto3 |
Affected:
0 , < 5.9.0
(semver)
|
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-33816",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-09T14:24:50.570972Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-09T14:26:09.200Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://pkg.go.dev",
"defaultStatus": "unaffected",
"packageName": "github.com/jackc/pgx/v5/pgproto3",
"product": "github.com/jackc/pgx/v5/pgproto3",
"programRoutines": [
{
"name": "FunctionCall.Decode"
},
{
"name": "Backend.Receive"
}
],
"vendor": "github.com/jackc/pgx/v5",
"versions": [
{
"lessThan": "5.9.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Memory-safety vulnerability in github.com/jackc/pgx/v5."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-697 \u2014 Incorrect Comparison",
"lang": "en"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-15T15:49:13.116Z",
"orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"shortName": "Go"
},
"references": [
{
"url": "https://pkg.go.dev/vuln/GO-2026-4772"
}
],
"title": "CVE-2026-33816 in github.com/jackc/pgx"
}
},
"cveMetadata": {
"assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"assignerShortName": "Go",
"cveId": "CVE-2026-33816",
"datePublished": "2026-04-07T15:19:24.529Z",
"dateReserved": "2026-03-23T20:35:32.814Z",
"dateUpdated": "2026-04-15T15:49:13.116Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-33816",
"date": "2026-04-16",
"epss": "0.00056",
"percentile": "0.1754"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2026-33816\",\"sourceIdentifier\":\"security@golang.org\",\"published\":\"2026-04-07T16:16:24.920\",\"lastModified\":\"2026-04-14T20:01:07.160\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Memory-safety vulnerability in github.com/jackc/pgx/v5.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pgx_project:pgx:*:*:*:*:*:go:*:*\",\"matchCriteriaId\":\"6FF5DA65-BBE8-41B1-BA19-AF53A50D16DC\"}]}]}],\"references\":[{\"url\":\"https://pkg.go.dev/vuln/GO-2026-4772\",\"source\":\"security@golang.org\",\"tags\":[\"Third Party Advisory\"]}]}}",
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 9.8, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-33816\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-04-09T14:24:50.570972Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-04-09T14:26:04.652Z\"}}], \"cna\": {\"title\": \"CVE-2026-33816 in github.com/jackc/pgx\", \"affected\": [{\"vendor\": \"github.com/jackc/pgx/v5\", \"product\": \"github.com/jackc/pgx/v5/pgproto3\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"5.9.0\", \"versionType\": \"semver\"}], \"packageName\": \"github.com/jackc/pgx/v5/pgproto3\", \"collectionURL\": \"https://pkg.go.dev\", \"defaultStatus\": \"unaffected\", \"programRoutines\": [{\"name\": \"FunctionCall.Decode\"}, {\"name\": \"Backend.Receive\"}]}], \"references\": [{\"url\": \"https://pkg.go.dev/vuln/GO-2026-4772\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Memory-safety vulnerability in github.com/jackc/pgx/v5.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"description\": \"CWE-697 \\u2014 Incorrect Comparison\"}]}], \"providerMetadata\": {\"orgId\": \"1bb62c36-49e3-4200-9d77-64a1400537cc\", \"shortName\": \"Go\", \"dateUpdated\": \"2026-04-15T15:49:13.116Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-33816\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-04-15T15:49:13.116Z\", \"dateReserved\": \"2026-03-23T20:35:32.814Z\", \"assignerOrgId\": \"1bb62c36-49e3-4200-9d77-64a1400537cc\", \"datePublished\": \"2026-04-07T15:19:24.529Z\", \"assignerShortName\": \"Go\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
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…
Loading…