CVE-2026-4427
high
CVSS v3
—
CVSS v4 NEW
—
VIR risk
8.0
Description
RHSA-2026:22714: osbuild-composer security update (Important)
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Red Hat Fixed 1 release
| Version | Status | Fixed in |
|---|---|---|
| 9 | Fixed | — |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | github.com/jackc/pgproto3/v2 | <=2.3.3 | |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-4427
- https://github.com/golang/vulndb/issues/4518
- https://github.com/jackc/pgx/issues/2507
- https://access.redhat.com/security/cve/CVE-2026-4427
- https://bugzilla.redhat.com/show_bug.cgi?id=2448626
- https://github.com/jackc/pgproto3
- https://securityinfinity.com/research/memory-safety-vulnerabilities-in-go-postgresql-wire-protocol-parsers-pgproto3-pgx
- https://www.suse.com/security/cve/CVE-2026-4427.html
- https://access.redhat.com/errata/RHSA-2026:22714
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.