Advisory severityMedium6.5Red Hat Linux

Medium [CVE-2026-14663] PostgreSQL pgcrypto: Information disclosure via cleartext storage with disabled ciphers

This medium-severity Red Hat Linux advisory covers CVE-2026-14663 affecting Red Hat Hardened Images, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-14663 Source published Aug 13, 2026Source updated Aug 13, 2026

VulniPulse record published Sep 3, 2026Record updated Sep 3, 2026

CVE-2026-14663

Affected products & platforms

Red Hat LinuxRed Hat Enterprise Linux

Open source advisory

Android app · Google Play

Monitor future Red Hat Linux CVEs from your phone.

Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 34 official vendor sources and 160+ reviewed platform categories.

Matching phone alertsOptional email delivery

Get CVE alerts See app features

Summary

Cleartext storage in PostgreSQL pgcrypto disabled ciphers allows a user to recover cleartext, via direct observation of the faulty ciphertext. The OpenSSL version and OpenSSL configuration determine the disabled ciphers.

If the application accepts encrypted data as input, decryption will succeed even with the wrong key. This in turn loses the modest protection from the Modification Detection Code (MDC).

Affected functions are pgp_sym_encrypt, pgp_sym_decrypt, pgp_pub_encrypt, pgp_pub_decrypt, pgp_sym_encrypt_bytea, pgp_sym_decrypt_bytea, pgp_pub_encrypt_bytea, and pgp_pub_decrypt_bytea. This is a Moderate impact flaw in PostgreSQL's pgcrypto module where disabled ciphers can lead to information disclosure.

This vulnerability primarily affects instances utilizing the pgcrypto module for encryption, potentially exposing sensitive data if specific OpenSSL configurations disable certain ciphers. Red Hat severity: Moderate — CVSS 6.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N).

Weakness: CWE-312. Affected Red Hat products: Red Hat Hardened Images; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Self-service automation portal 2.

Red Hat fixing advisory: RHSA-2026:54751, RHSA-2026:57198.

Affected versions

< 18.5
< 17.11
< 16.15
< 15.19
< 14.24

Official advisory · high-confidence parse· fetched 16 days ago·verify at source

Fixed versions

postgresql18-main-18.6-0.1.hum1
postgresql17-main-17.11-1.hum1
RHSA-2026:54751
RHSA-2026:57198

Official advisory · high-confidence parse· fetched 16 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation

To mitigate this vulnerability, administrators should avoid using pgcrypto encryption and decryption operations with ciphers that are disabled by the system's OpenSSL configuration or local security policies. Organizations should proactively review their OpenSSL cipher policies to ensure required cryptographic algorithms are fully supported, or transition to robust, enabled algorithms within pgcrypto. Additionally, applications should treat all encrypted input as untrusted and independently validate data

Official advisory · high-confidence parse· fetched 16 days ago·verify at source

Discussion(0)

No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.