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OpenAdvisories
Low · 1.0 CVE-2026-6678 EUVD-2026-39558GHSA-p894-8wv9-373j

Integer underflow in wc_PKCS7_DecryptOri handling crafted Other Recipient Info

Published Jun 25, 2026 · Updated Jul 1, 2026 · Assigned by wolfSSL

Description

Integer underflow in wc_PKCS7_DecryptOri when handling crafted Other Recipient Info, leading to incorrect length handling during decryption.

Affected products

VendorProductAffectedFixed
wolfSSL wolfSSL 3.15.5 – ≤ 5.9.1 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 13 wolfssl 5.7.2-0.1+deb13u2 —
Debian 12 wolfssl 5.5.4-2+deb12u3 —
ReleasePackageFixed inAdvisory
Ubuntu 26.10 wolfssl No fix yet —
Ubuntu 26.04 LTS wolfssl No fix yet —
Ubuntu 25.10 wolfssl No fix yet —
Ubuntu 24.04 LTS wolfssl No fix yet —
Ubuntu 22.04 LTS wolfssl No fix yet —
Show 3 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 20.04 LTS wolfssl No fix yet —
Ubuntu 18.04 LTS wolfssl No fix yet —
Ubuntu 16.04 LTS wolfssl No fix yet —
ReleasePackageFixed inAdvisory
Alpine v3.24 wolfssl 5.9.2-r0 —

References