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CVE-2026-14355

ext/openssl: Memory corruption in openssl_encrypt with AES-WRAP-PAD

Medium5.6EPSS 0.28%
Published
Updated
Reserved
Assigned by
php

Description

In PHP versions 8.2.* before 8.2.32, 8.3.* before 8.3.32, 8.4.* before 8.4.23, 8.5.* before 8.5.8, the AES-WRAP-PAD algorithm implementation in OpenSSL extension contains a buffer allocation flaw. The output buffer for the AES key-wrap-with-padding operation is sized from the plaintext length without accounting for RFC 5649 expansion. This may cause OpenSSL to write beyond allocated memory, corrupting heap metadata and triggering application abort.

Scores

CVSS scores of CVE-2026-14355, by who scored it
Scored byCVSSScoreVector
phpCNA (assigner)3.1Medium5.6CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
NVDNVD · Analyzed3.1Medium5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS (exploitation in 30 days)
0.28% · top 80% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.6.

Weakness

Affected products

  • php · php

    • affected 8.2.0 – < 8.2.32
    • affected 8.3.0 – < 8.3.32
    • affected 8.4.0 – < 8.4.23
    • affected 8.5.0 – < 8.5.8

References (2)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .