7.5

CVE-2026-32286: Denial of service in github.com/jackc/pgproto3/v2

Modified
AliasesUBUNTU-CVE-2026-32286DEBIAN-CVE-2026-32286CGA-3852-54cw-56xj
Published 26-03-2026Last modified 10-09-2026

Vulnerability summary

CVE-2026-32286 is a high (CVSS 7.5) Improper Validation of Array Index vulnerability in jackc pgproto3. EPSS estimates a 0.68% chance of exploitation in the next 30 days, higher than 52.2% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Prioritisepublic exploit

Public exploit (reference, Date unknown)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.68%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 5 · Duplicates 1 · Related 6
OPENSUSE-SU-2026:21483-1RHSA-2026:22450RHSA-2026:22714SUSE-SU-2026:1135-1SUSE-SU-2026:1205-1CVE-2026-4427

Timeline

  1. 26-03-2026
    PublishedVulnerability first disclosed.
  2. 10-09-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

7 scores · 7 sources · 1 version

EPSS trend

Probability

0.68%

Chance of exploitation in the next 30 days

Percentile

52%

Versus all other CVEs

30-day change

Increase +0.03 pp

From 0.65% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (securityinfinity.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Chainguard96 products
  • argo-workflow-controller-3.6All versions (No fix recorded)
  • argo-workflow-controller-fips-3.6All versions (No fix recorded)
  • argo-workflow-executor-3.6All versions (No fix recorded)
  • argo-workflow-executor-fips-3.6All versions (No fix recorded)
  • argo-workflows-3.6All versions (No fix recorded)
Wolfi21 products
  • bento< 1.16.1-r1
  • flyteAll versions (No fix recorded)
  • grafana-alloy< 1.17.0-r0
  • harbor-2.14All versions (No fix recorded)
  • harbor-2.14-exporterAll versions (No fix recorded)
Debian1 product
  • golang-github-jackc-pgproto3All versions (No fix recorded) | < 2.3.3-2
Github.com/jackc/pgproto31 product
  • v2≥ 2.0.0, ≤ 2.3.3 | ≥ 2.0.0 (No fix recorded)
Jackc1 product
Ubuntu1 product
  • golang-github-jackc-pgproto3All versions (No fix recorded)

6 vendors · 121 products

References

31 links
Show all 31 references