CVE-2026-5504

Name
CVE-2026-5504
Description
A padding oracle exists in wolfSSL's PKCS7 CBC decryption that could allow an attacker to recover plaintext through repeated decryption queries with modified ciphertext. In previous versions of wolfSSL the interior padding bytes are not validated.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
facts@wolfssl.com https://github.com/wolfSSL/wolfssl/pull/10088

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:* wolfssl >= None <= 5.9.0

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
wolfssl edge-community 5.9.1-r0 Pavlo Dembytskyi <me@devs.boo> fixed
wolfssl edge-community 5.9.0-r0 Pavlo Dembytskyi <me@devs.boo> possibly vulnerable
wolfssl edge-community 5.8.4-r2 Pavlo Dembytskyi <me@devs.boo> possibly vulnerable
wolfssl edge-community 5.8.4-r1 None possibly vulnerable
wolfssl edge-community 5.8.2-r1 None possibly vulnerable
wolfssl edge-community 5.8.2-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
wolfssl edge-community 5.7.6-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
wolfssl edge-community 5.7.4-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
wolfssl edge-community 5.7.2-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
wolfssl edge-community 5.7.0-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
wolfssl edge-community 5.6.6-r0 None possibly vulnerable
wolfssl edge-community 5.6.2-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
wolfssl edge-community 5.5.3-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
wolfssl edge-community 5.5.1-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
wolfssl edge-community 5.5.0-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
wolfssl edge-community 5.4.0-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
wolfssl 3.23-community 5.9.1-r0 Jakub Jirutka <jakub@jirutka.cz> fixed
wolfssl 3.23-community 5.8.2-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable