CVE-2026-32286 (GCVE-0-2026-32286)

Vulnerability from cvelistv5 – Published: 2026-03-26 19:40 – Updated: 2026-04-02 19:08
VLAI?
Title
Denial of service in github.com/jackc/pgproto3/v2
Summary
The DataRow.Decode function fails to properly validate field lengths. A malicious or compromised PostgreSQL server can send a DataRow message with a negative field length, causing a slice bounds out of range panic.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
Assigner
Go
References
Impacted products
Vendor Product Version
github.com/jackc/pgproto3/v2 github.com/jackc/pgproto3/v2 Unaffected: 0 , < 2.0.0 (semver)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "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"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-32286",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-30T14:08:15.986882Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-30T14:55:11.942Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://securityinfinity.com/research/memory-safety-vulnerabilities-in-go-postgresql-wire-protocol-parsers-pgproto3-pgx"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "affected",
          "packageName": "github.com/jackc/pgproto3/v2",
          "product": "github.com/jackc/pgproto3/v2",
          "programRoutines": [
            {
              "name": "DataRow.Decode"
            },
            {
              "name": "Frontend.Receive"
            }
          ],
          "vendor": "github.com/jackc/pgproto3/v2",
          "versions": [
            {
              "lessThan": "2.0.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The DataRow.Decode function fails to properly validate field lengths. A malicious or compromised PostgreSQL server can send a DataRow message with a negative field length, causing a slice bounds out of range panic."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-125: Out-of-bounds Read",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-02T19:08:53.981Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
      "references": [
        {
          "url": "https://github.com/advisories/GHSA-jqcq-xjh3-6g23"
        },
        {
          "url": "https://github.com/jackc/pgx/issues/2507"
        },
        {
          "url": "https://github.com/golang/vulndb/issues/4518"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-4518"
        }
      ],
      "title": "Denial of service in github.com/jackc/pgproto3/v2"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2026-32286",
    "datePublished": "2026-03-26T19:40:51.974Z",
    "dateReserved": "2026-03-11T16:38:46.556Z",
    "dateUpdated": "2026-04-02T19:08:53.981Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-32286",
      "date": "2026-05-02",
      "epss": "0.00064",
      "percentile": "0.19628"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-32286\",\"sourceIdentifier\":\"security@golang.org\",\"published\":\"2026-03-26T20:16:12.303\",\"lastModified\":\"2026-04-02T20:16:23.443\",\"vulnStatus\":\"Undergoing Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The DataRow.Decode function fails to properly validate field lengths. A malicious or compromised PostgreSQL server can send a DataRow message with a negative field length, causing a slice bounds out of range panic.\"},{\"lang\":\"es\",\"value\":\"La funci\u00f3n DataRow.Decode no valida correctamente las longitudes de los campos. Un servidor PostgreSQL malicioso o comprometido puede enviar un mensaje DataRow con una longitud de campo negativa, causando un p\u00e1nico de desbordamiento de l\u00edmites de slice.\"}],\"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:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}]},\"references\":[{\"url\":\"https://github.com/advisories/GHSA-jqcq-xjh3-6g23\",\"source\":\"security@golang.org\"},{\"url\":\"https://github.com/golang/vulndb/issues/4518\",\"source\":\"security@golang.org\"},{\"url\":\"https://github.com/jackc/pgx/issues/2507\",\"source\":\"security@golang.org\"},{\"url\":\"https://pkg.go.dev/vuln/GO-2026-4518\",\"source\":\"security@golang.org\"},{\"url\":\"https://securityinfinity.com/research/memory-safety-vulnerabilities-in-go-postgresql-wire-protocol-parsers-pgproto3-pgx\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-32286\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-03-30T14:08:15.986882Z\"}}}], \"references\": [{\"url\": \"https://securityinfinity.com/research/memory-safety-vulnerabilities-in-go-postgresql-wire-protocol-parsers-pgproto3-pgx\", \"tags\": [\"exploit\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-03-30T14:08:56.643Z\"}}], \"cna\": {\"title\": \"Denial of service in github.com/jackc/pgproto3/v2\", \"affected\": [{\"vendor\": \"github.com/jackc/pgproto3/v2\", \"product\": \"github.com/jackc/pgproto3/v2\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"2.0.0\", \"versionType\": \"semver\"}], \"packageName\": \"github.com/jackc/pgproto3/v2\", \"collectionURL\": \"https://pkg.go.dev\", \"defaultStatus\": \"affected\", \"programRoutines\": [{\"name\": \"DataRow.Decode\"}, {\"name\": \"Frontend.Receive\"}]}], \"references\": [{\"url\": \"https://github.com/advisories/GHSA-jqcq-xjh3-6g23\"}, {\"url\": \"https://github.com/jackc/pgx/issues/2507\"}, {\"url\": \"https://github.com/golang/vulndb/issues/4518\"}, {\"url\": \"https://pkg.go.dev/vuln/GO-2026-4518\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"The DataRow.Decode function fails to properly validate field lengths. A malicious or compromised PostgreSQL server can send a DataRow message with a negative field length, causing a slice bounds out of range panic.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"description\": \"CWE-125: Out-of-bounds Read\"}]}], \"providerMetadata\": {\"orgId\": \"1bb62c36-49e3-4200-9d77-64a1400537cc\", \"shortName\": \"Go\", \"dateUpdated\": \"2026-04-02T19:08:53.981Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-32286\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-04-02T19:08:53.981Z\", \"dateReserved\": \"2026-03-11T16:38:46.556Z\", \"assignerOrgId\": \"1bb62c36-49e3-4200-9d77-64a1400537cc\", \"datePublished\": \"2026-03-26T19:40:51.974Z\", \"assignerShortName\": \"Go\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.



Detection rules are retrieved from Rulezet.