CVE-2026-14669
CVE-2026-14669: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityHigh8.8
High [CVE-2026-14669] Arbitrary code execution via long POSIX timezone abbreviation
CVE-2026-14669Source published Source updated
Heap buffer overflow in PostgreSQL to_char(timestamptz) allows the party choosing the timezone to execute arbitrary code as the operating system user running the database, via a long POSIX timezone abbreviation. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected. An attacker can exploit this by supplying an overly long POSIX timezone abbreviation to execute arbitrary code as the database's operating system user, potentially resulting in complete system compromise. This risk is highest where untrusted users can modify timezone settings. Red Hat severity: Important — CVSS 8.8 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). Weakness: CWE-122.
- Affected products in this advisory
- Red Hat Enterprise Linux 10.0 Extended Update Support
- Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
- Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
- Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
12 more entries in the full advisory.
- Source-reported affected versions
- < 18.5
- < 17.11
- < 16.15
- < 15.19
1 more entries in the full advisory.
- Source-reported fixed versions
- postgresql18-0:18.6-1.el10_2
- postgresql16-0:16.15-1.el10_2
- postgresql16-0:16.15-1.el10_0
- postgresql:16-8100020260910192321.489197e6
40 more entries in the full advisory.
- Mitigation guidance
- To reduce the risk of exploitation, ensure that only trusted users have privileges to modify timezone settings within the PostgreSQL database. Additionally, restrict network access to the PostgreSQL server to only trusted clients and applications through firewall rules, limiting the attack surface for remote exploitation.
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