https://db.gcve.eu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Thu, 15 Oct 2026 05:37:57 +0000 https://db.gcve.eu/vuln/cve-2026-74877 <p><strong>Affected:</strong> jahlives openssl_encrypt</p> <p>openssl_encrypt versions before 1.4.0 contain a missing ownership verification vulnerability in the revoke_key method that allows authenticated clients to revoke any other client&#39;s key. Attackers can revoke arbitrary keys by providing a valid ML-DSA signature, bypassing the intended ownership restriction.</p> <p><strong>Affected:</strong> jahlives openssl_encrypt</p> <p>openssl_encrypt versions before 1.4.0 contain a missing ownership verification vulnerability in the revoke_key method that allows authenticated clients to revoke any other client&#39;s key. Attackers can revoke arbitrary keys by providing a valid ML-DSA signature, bypassing the intended ownership restriction.</p> https://db.gcve.eu/vuln/cve-2026-74877 https://db.gcve.eu/vuln/ghsa-hvc7-763r-4f3h <p><strong>Affected:</strong> PyPI: openssl-encrypt</p> <p>### Summary</p> <p>The `revoke_key` method in `openssl_encrypt_server/modules/keyserver/service.py` at **lines 195-270** accepts a `client_id` parameter but never verifies that the requesting client is the same as `key.owner_client_id`.</p> <p>### Impact</p> <p>Any authenticated client can revoke any other client&#39;s key, as long as they provide a valid revocation signature. While the signature requirement mitigates this somewhat (you need the private key to sign), the lack of ownership check is a defense-in-depth gap.</p> <p>### Recommended Fix</p> <p>- Add an ownership check: verify `client_id == key.owner_client_id` before allowing revocation - Return 403 Forbidden if the requesting client does not own the key</p> <p>### Fix</p> <p>Fixed in commit `05e45f3` on branch `releases/1.4.x` — added documentation that ML-DSA signature verification IS the cryptographic ownership check; added info-level logging on successful verification.</p> <p><strong>Affected:</strong> PyPI: openssl-encrypt</p> <p>### Summary</p> <p>The `revoke_key` method in `openssl_encrypt_server/modules/keyserver/service.py` at **lines 195-270** accepts a `client_id` parameter but never verifies that the requesting client is the same as `key.owner_client_id`.</p> <p>### Impact</p> <p>Any authenticated client can revoke any other client&#39;s key, as long as they provide a valid revocation signature. While the signature requirement mitigates this somewhat (you need the private key to sign), the lack of ownership check is a defense-in-depth gap.</p> <p>### Recommended Fix</p> <p>- Add an ownership check: verify `client_id == key.owner_client_id` before allowing revocation - Return 403 Forbidden if the requesting client does not own the key</p> <p>### Fix</p> <p>Fixed in commit `05e45f3` on branch `releases/1.4.x` — added documentation that ML-DSA signature verification IS the cryptographic ownership check; added info-level logging on successful verification.</p> https://db.gcve.eu/vuln/ghsa-hvc7-763r-4f3h