https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Wed, 07 Oct 2026 11:10:56 +0000 https://vulnerability.circl.lu/vuln/fkie_cve-2026-82454 <p>The Omnivore API (packages/api) before the fix in commit abf53d6 contains an authentication bypass in Apple sign-in token verification. The decodeAppleToken function extracted the &#39;alg&#39; field from the attacker-supplied JWT header and passed it as the sole allowed algorithm to jwt.verify(). Using jsonwebtoken v8 (which does not validate key/algorithm compatibility), an attacker can set alg=HS256 and sign a forged token using Apple&#39;s publicly available RSA public key as the HMAC secret, bypassing signature verification and impersonating any Apple-linked account.</p> <p>The Omnivore API (packages/api) before the fix in commit abf53d6 contains an authentication bypass in Apple sign-in token verification. The decodeAppleToken function extracted the &#39;alg&#39; field from the attacker-supplied JWT header and passed it as the sole allowed algorithm to jwt.verify(). Using jsonwebtoken v8 (which does not validate key/algorithm compatibility), an attacker can set alg=HS256 and sign a forged token using Apple&#39;s publicly available RSA public key as the HMAC secret, bypassing signature verification and impersonating any Apple-linked account.</p> https://vulnerability.circl.lu/vuln/fkie_cve-2026-82454 https://vulnerability.circl.lu/vuln/ghsa-8fpq-5wcx-76h3 <p>The Omnivore API (packages/api) before the fix in commit abf53d6 contains an authentication bypass in Apple sign-in token verification. The decodeAppleToken function extracted the &#39;alg&#39; field from the attacker-supplied JWT header and passed it as the sole allowed algorithm to jwt.verify(). Using jsonwebtoken v8 (which does not validate key/algorithm compatibility), an attacker can set alg=HS256 and sign a forged token using Apple&#39;s publicly available RSA public key as the HMAC secret, bypassing signature verification and impersonating any Apple-linked account.</p> <p>The Omnivore API (packages/api) before the fix in commit abf53d6 contains an authentication bypass in Apple sign-in token verification. The decodeAppleToken function extracted the &#39;alg&#39; field from the attacker-supplied JWT header and passed it as the sole allowed algorithm to jwt.verify(). Using jsonwebtoken v8 (which does not validate key/algorithm compatibility), an attacker can set alg=HS256 and sign a forged token using Apple&#39;s publicly available RSA public key as the HMAC secret, bypassing signature verification and impersonating any Apple-linked account.</p> https://vulnerability.circl.lu/vuln/ghsa-8fpq-5wcx-76h3