CVE-2026-6476

high

Published 2026-05-14 · Modified 2026-05-18

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

7.2

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS v4 NEW

—

not yet in upstream

VIR risk

7.2

Description

SQL injection in PostgreSQL pg_createsubscriber allows an attacker with pg_create_subscription rights to execute arbitrary SQL as a superuser. The attack takes effect when pg_createsubscriber next runs. Within major versions 17 and 18, minor versions before PostgreSQL 18.4 and 17.10 are affected. Versions before PostgreSQL 17 are unaffected.

Predictions

Exploit likelihood

81%

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 with source_tier=community-verified.

OS impact

OS	Version	Status	Fixed in
sles		affected
debian	forky	fixed	`18.4-1`
debian	sid	fixed	`18.4-1`
debian	trixie	fixed	`17.10-0+deb13u1`

Application impact

Vendor	Product	Versions	Fixed
postgresql	postgresql	`{"startIncluding":"17.0","endExcluding":"17.10"}`	`17.10`
postgresql	postgresql	`{"startIncluding":"18.0","endExcluding":"18.4"}`	`18.4`

References

CWEs

CWE-89

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.