Vulnerability GHSA-xp3w-r5p5-63rr
High Risk
HIGH RISK
CVSS Score: 8.0
Score Range: 7.0–8.9
High severity vulnerabilities (CVSS 7.0–8.9). Serious vulnerabilities that should be prioritized soon after critical fixes.
6 months ago
May 05, 2026 at 09:46 PM UTC
rust-openssl has undefined behavior in X509Ref::ocsp_responders for certificates with non-UTF-8 OCSP URLs
0.9.7 - 0.10.78
0.9.7 - 0.10.78
Summary
rust-openssl has undefined behavior in X509Ref::ocsp_responders for certificates with non-UTF-8 OCSP URLs
Details
X509Ref::ocsp_responders returns OCSP responder URLs from a certificate's AIA extension as OpensslString, whose Deref<Target = str> wraps the raw bytes with str::from_utf8_unchecked. OpenSSL does not enforce that the underlying IA5String is ASCII, so a certificate with non-UTF-8 bytes in its OCSP accessLocation causes safe Rust code to construct a &str that violates the UTF-8 invariant — resulting in undefined behavior.
Related Vulnerabilities
Other vulnerabilities affecting the same packages
Medium Risk
5 months ago
rust-openssl: Potential out-of-bounds write in `CipherCtxRef::cipher_update_inplace` for AES-KW-PAD ciphers
0.10.50 - 0.10.79 GHSA-phqj-4mhp-q6mq
0.10.50 - 0.10.79 GHSA-phqj-4mhp-q6mq
Medium Risk
6 months ago
rust-openssl vulnerable to heap buffer overflow when encrypting with AES key-wrap-with-padding
0.10.0 - 0.10.78 GHSA-xv59-967r-8726
0.10.0 - 0.10.78 GHSA-xv59-967r-8726
High Risk
6 months ago
rust-openssl: Deriver::derive and PkeyCtxRef::derive can overflow short buffers on OpenSSL 1.1.1
0.10.0 - 0.10.77 GHSA-pqf5-4pqq-29f5
0.10.0 - 0.10.77 GHSA-pqf5-4pqq-29f5
Low Risk
6 months ago
rust-opennssl has an Out-of-bounds read in PEM password callback when returning an oversized length
0.9.0 - 0.10.77 GHSA-xmgf-hq76-4vx2
0.9.0 - 0.10.77 GHSA-xmgf-hq76-4vx2
High Risk
6 months ago
rust-openssl has incorrect bounds assertion in aes key wrap
0.10.24 - 0.10.77 GHSA-8c75-8mhr-p7r9
0.10.24 - 0.10.77 GHSA-8c75-8mhr-p7r9
Impacted packages
Timeline
Published
6 months ago
May 05, 2026 at 09:46 PM UTC
Fixed (0.10.79)
6 months ago
May 04, 2026 at 12:19 AM UTC
Last Modified
2 months ago
September 10, 2026 at 03:51 AM UTC