CVE-2026-14663

CVE-2026-14663 is a medium-severity vulnerability in Postgresql with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-313.

Key facts

• Severity: Medium (CVSS 3.x base score 6.5)
• EPSS exploit prediction: 0% (2nd percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-313
• Affected product: Postgresql
• Published: 2026-08-13
• Last modified: 2026-08-19

Description

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. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.

Frequently asked questions

What is CVE-2026-14663?

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. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.

How severe is CVE-2026-14663?

CVE-2026-14663 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-14663 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-14663?

CVE-2026-14663 affects Postgresql. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-14663?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-14663 published?

CVE-2026-14663 was published on 2026-08-13 and last updated on 2026-08-19.

References

• https://www.postgresql.org/support/security/CVE-2026-14663/

Affected products (1)

• cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*

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