CVE Explorer
CVE-2026-11564
libcurl keeps previously used connections in a connection pool for subsequent
transfers to reuse if one of them matches the setup.
An easy handle that first uses default native CA trust can continue trusting
the native platform store after the application switches that same handle to
custom CA material for a later transfer.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"curl","vendor":"curl","versions":[{"lessThanOrEqual":"8.20.0","status":"affected","version":"8.20.0","versionType":"semver"},{"lessThanOrEqual":"8.19.0","status":"affected","version":"8.19.0","versionType":"semver"},{"lessThanOrEqual":"8.18.0","status":"affected","version":"8.18.0","versionType":"semver"},{"lessThanOrEqual":"8.17.0","status":"affected","version":"8.17.0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:372324ecb368f785282752b1e4db18933421cc6c4ad2de35ff56be122351f3ea · sha256:4dfa23f5ab53caed… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":9.1,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:372324ecb368f785282752b1e4db18933421cc6c4ad2de35ff56be122351f3ea · sha256:4dfa23f5ab53caed… · /containers/adp/0/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"description":"CWE-295 Improper Certificate Validation","lang":"en"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:372324ecb368f785282752b1e4db18933421cc6c4ad2de35ff56be122351f3ea · sha256:4dfa23f5ab53caed… · /containers/cna/problemTypes/0/descriptions/0
Source references
4 source assertions{"name":"www","url":"https://curl.se/docs/CVE-2026-11564.html"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:372324ecb368f785282752b1e4db18933421cc6c4ad2de35ff56be122351f3ea · sha256:4dfa23f5ab53caed… · /containers/cna/references/1
{"name":"json","url":"https://curl.se/docs/CVE-2026-11564.json"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:372324ecb368f785282752b1e4db18933421cc6c4ad2de35ff56be122351f3ea · sha256:4dfa23f5ab53caed… · /containers/cna/references/0
{"name":"issue","url":"https://hackerone.com/reports/3788984"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:372324ecb368f785282752b1e4db18933421cc6c4ad2de35ff56be122351f3ea · sha256:4dfa23f5ab53caed… · /containers/cna/references/2
{"tags":["exploit"],"url":"https://hackerone.com/reports/3788984"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:372324ecb368f785282752b1e4db18933421cc6c4ad2de35ff56be122351f3ea · sha256:4dfa23f5ab53caed… · /containers/adp/0/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.