CVE Explorer
CVE-2026-35188
Issue summary: A malicious server can exploit TLS OCSP stapling by delivering
a crafted response through the status_request extension, triggering a
double-free in the client's certificate verification path.
Impact summary: Successful exploitation allows an attacker to corrupt heap
memory via a double-free, potentially leading to a Denial of Service or
possibly an attacker controlled code execution or other undefined behavior.
If OCSP stapling is enabled and the TLS client connects to a malicio
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"OpenSSL","vendor":"OpenSSL","versions":[{"lessThan":"4.0.1","status":"affected","version":"4.0.0","versionType":"semver"},{"lessThan":"3.6.3","status":"affected","version":"3.6.0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:38b941f56e3f167e59b2c04e280fc31f11e8fce2d3ba303f5e72cc271da7a2d0 · sha256:db6bea84d3da16c8… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:38b941f56e3f167e59b2c04e280fc31f11e8fce2d3ba303f5e72cc271da7a2d0 · sha256:db6bea84d3da16c8… · /containers/adp/0/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-415","description":"CWE-415 Double Free","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:38b941f56e3f167e59b2c04e280fc31f11e8fce2d3ba303f5e72cc271da7a2d0 · sha256:db6bea84d3da16c8… · /containers/cna/problemTypes/0/descriptions/0
Source references
3 source assertions{"name":"3.6.3 git commit","tags":["patch"],"url":"https://github.com/openssl/openssl/commit/131145d25659e8749a9ed1afb383484854cffb78"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:38b941f56e3f167e59b2c04e280fc31f11e8fce2d3ba303f5e72cc271da7a2d0 · sha256:db6bea84d3da16c8… · /containers/cna/references/2
{"name":"4.0.1 git commit","tags":["patch"],"url":"https://github.com/openssl/openssl/commit/78d0154cffda03aaaac63a087cc523a6b35fa8fd"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:38b941f56e3f167e59b2c04e280fc31f11e8fce2d3ba303f5e72cc271da7a2d0 · sha256:db6bea84d3da16c8… · /containers/cna/references/1
{"name":"OpenSSL Advisory","tags":["vendor-advisory"],"url":"https://openssl-library.org/news/secadv/20260609.txt"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:38b941f56e3f167e59b2c04e280fc31f11e8fce2d3ba303f5e72cc271da7a2d0 · sha256:db6bea84d3da16c8… · /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.