CVE-2026-3172

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Source
https://cve.org/CVERecord?id=CVE-2026-3172
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-3172.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-3172
Downstream
DEBIAN (1)
ECHO (1)
openSUSE (2)
SUSE (2)
UBUNTU (1)
Related
openSUSE (2)
SUSE (2)
Published
2026-02-25T20:59:10Z
Modified
2026-08-12T15:32:18Z
Severity
  • 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
Summary
pgvector buffer overflow in parallel HNSW index build
Details

Buffer overflow in parallel HNSW index build in pgvector 0.6.0 through 0.8.1 allows a database user to leak sensitive data from other relations or crash the database server.

Database specific 
{
    "cna_assigner":  "PostgreSQL",
    "cwe_ids":  [
        "CWE-191",
        "CWE-787"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/3xxx/CVE-2026-3172.json"
}
References

Affected packages

Git / github.com/pgvector/pgvector

Affected ranges

Type
GIT
Repo
https://github.com/pgvector/pgvector
Events
Introduced
2627c5ff775ae6d7aef0c430121ccf857842d2f2
Fixed
cab9da72c04353f143bb06b42ab70a403daac64a
Introduced
3849f0fd3d6f7916de26d43e3a3c9f8e6615bc8f
Last Affected
281d4fcf60e2f037fa09d62be2543bb4d7511f2b
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0.8.0"
        },
        {
            "fixed":  "0.8.2"
        },
        {
            "introduced":  "0.7.0"
        },
        {
            "last_affected":  "0.7.0"
        },
        {
            "introduced":  "0.6.0"
        },
        {
            "last_affected":  "0.6.0"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

Affected versions

0.*
0.6.0
0.7.0
v0.*
v0.8.0
v0.8.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-3172.json"
vanir_signatures 
[
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "325184370726427892987140608035869586883",
                "151522159397468950254370717503276765526",
                "329316765945889667786866862518721915573",
                "158760423621449773580808045031918353392"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-3172-319708fc",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/pgvector/pgvector/commit/cab9da72c04353f143bb06b42ab70a403daac64a",
        "target":  {
            "file":  "src/vector.c"
        }
    }
]
vanir_signatures_modified 
"2026-08-12T15:32:18Z"