CVE Explorer
CVE-2026-42327
rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.7 to before 0.10.79, 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 — resul
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"rust-openssl","vendor":"rust-openssl","versions":[{"status":"affected","version":">= 0.9.7, < 0.10.79"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:9f365b0fa0fc22cd5e9ff6c7529886730afe054796d3428c0c9a1f921e6cf29d · sha256:b17ce63855cd1d6a… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:9f365b0fa0fc22cd5e9ff6c7529886730afe054796d3428c0c9a1f921e6cf29d · sha256:b17ce63855cd1d6a… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-20","description":"CWE-20: Improper Input Validation","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:9f365b0fa0fc22cd5e9ff6c7529886730afe054796d3428c0c9a1f921e6cf29d · sha256:b17ce63855cd1d6a… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"name":"https://github.com/rust-openssl/rust-openssl/security/advisories/GHSA-xp3w-r5p5-63rr","tags":["x_refsource_CONFIRM"],"url":"https://github.com/rust-openssl/rust-openssl/security/advisories/GHSA-xp3w-r5p5-63rr"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:9f365b0fa0fc22cd5e9ff6c7529886730afe054796d3428c0c9a1f921e6cf29d · sha256:b17ce63855cd1d6a… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.