{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-13608","assignerOrgId":"2499f714-1537-4658-8207-48ae4bb9eae9","state":"PUBLISHED","assignerShortName":"curl","dateReserved":"2026-06-29T08:57:44.945Z","datePublished":"2026-09-06T17:47:01.951Z","dateUpdated":"2026-09-15T06:02:45.788Z"},"containers":{"cna":{"providerMetadata":{"orgId":"2499f714-1537-4658-8207-48ae4bb9eae9","shortName":"curl","dateUpdated":"2026-09-15T06:02:45.788Z"},"title":"OpenLDAP SASL authentication bypass","descriptions":[{"lang":"en","value":"A flaw in the libcurl SASL negotiation for LDAP authentication allows an\nincomplete handshake sequence to be misinterpreted as a successful\ncryptographic verification. An attacker executing a Man-in-the-Middle (MITM)\nattack can inject a premature or shortcut response that bypasses complete peer\nvalidation."}],"affected":[{"vendor":"curl","product":"curl","versions":[{"version":"7.82.0","status":"affected","versionType":"semver","lessThan":"8.14.2"},{"version":"8.15.0","status":"affected","versionType":"semver","lessThan":"8.16.1"},{"version":"8.17.0","status":"affected","versionType":"semver","lessThan":"8.20.1"},{"version":"8.21.0","status":"affected","versionType":"semver","lessThan":"8.22.0"}],"defaultStatus":"unaffected"},{"vendor":"curl","product":"curl","versions":[{"version":"eeca818b1e8d1e61c2d4d833aed56ce4c510a9d4","status":"affected","versionType":"git","lessThan":"ea71c3b6b60e563651ea8596a975aef0c8199519"}],"defaultStatus":"unaffected","repo":"https://github.com/curl/curl.git"},{"vendor":"curl","product":"curl","versions":[{"version":"8.21.0","status":"affected"},{"version":"8.20.0","status":"affected"},{"version":"8.19.0","status":"affected"},{"version":"8.18.0","status":"affected"},{"version":"8.17.0","status":"affected"},{"version":"8.16.0","status":"affected"},{"version":"8.15.0","status":"affected"},{"version":"8.14.1","status":"affected"},{"version":"8.14.0","status":"affected"},{"version":"8.13.0","status":"affected"},{"version":"8.12.1","status":"affected"},{"version":"8.12.0","status":"affected"},{"version":"8.11.1","status":"affected"},{"version":"8.11.0","status":"affected"},{"version":"8.10.1","status":"affected"},{"version":"8.10.0","status":"affected"},{"version":"8.9.1","status":"affected"},{"version":"8.9.0","status":"affected"},{"version":"8.8.0","status":"affected"},{"version":"8.7.1","status":"affected"},{"version":"8.7.0","status":"affected"},{"version":"8.6.0","status":"affected"},{"version":"8.5.0","status":"affected"},{"version":"8.4.0","status":"affected"},{"version":"8.3.0","status":"affected"},{"version":"8.2.1","status":"affected"},{"version":"8.2.0","status":"affected"},{"version":"8.1.2","status":"affected"},{"version":"8.1.1","status":"affected"},{"version":"8.1.0","status":"affected"},{"version":"8.0.1","status":"affected"},{"version":"8.0.0","status":"affected"},{"version":"7.88.1","status":"affected"},{"version":"7.88.0","status":"affected"},{"version":"7.87.0","status":"affected"},{"version":"7.86.0","status":"affected"},{"version":"7.85.0","status":"affected"},{"version":"7.84.0","status":"affected"},{"version":"7.83.1","status":"affected"},{"version":"7.83.0","status":"affected"},{"version":"7.82.0","status":"affected"}],"defaultStatus":"unaffected"}],"references":[{"url":"https://curl.se/docs/CVE-2026-13608.json"},{"url":"https://curl.se/docs/CVE-2026-13608.html"},{"url":"https://hackerone.com/reports/3822248"}],"x_osv":{"schema_version":"1.5.0","id":"CURL-CVE-2026-13608","aliases":["CVE-2026-13608"],"summary":"OpenLDAP SASL authentication bypass","modified":"2026-09-07T10:34:51.00Z","database_specific":{"package":"curl","affects":"both","URL":"https://curl.se/docs/CVE-2026-13608.json","www":"https://curl.se/docs/CVE-2026-13608.html","issue":"https://hackerone.com/reports/3822248","CWE":{"id":"CWE-923","desc":"Improper Restriction of Communication Channel to Intended Endpoints"},"last_affected":"8.21.0","severity":"Low"},"published":"2026-09-02T08:00:00.00Z","affected":[{"ranges":[{"type":"SEMVER","events":[{"introduced":"7.82.0"},{"fixed":"8.14.2"},{"introduced":"8.15.0"},{"fixed":"8.16.1"},{"introduced":"8.17.0"},{"fixed":"8.20.1"},{"introduced":"8.21.0"},{"fixed":"8.22.0"}]},{"type":"GIT","repo":"https://github.com/curl/curl.git","events":[{"introduced":"eeca818b1e8d1e61c2d4d833aed56ce4c510a9d4"},{"fixed":"ea71c3b6b60e563651ea8596a975aef0c8199519"}]}],"versions":["8.21.0","8.20.0","8.19.0","8.18.0","8.17.0","8.16.0","8.15.0","8.14.1","8.14.0","8.13.0","8.12.1","8.12.0","8.11.1","8.11.0","8.10.1","8.10.0","8.9.1","8.9.0","8.8.0","8.7.1","8.7.0","8.6.0","8.5.0","8.4.0","8.3.0","8.2.1","8.2.0","8.1.2","8.1.1","8.1.0","8.0.1","8.0.0","7.88.1","7.88.0","7.87.0","7.86.0","7.85.0","7.84.0","7.83.1","7.83.0","7.82.0"]}],"credits":[{"name":"Eunsoo Kim (Autonomous Code Security team at Microsoft)","type":"finder"},{"name":"Eunsoo Kim","type":"remediation developer"}],"details":"A flaw in the libcurl SASL negotiation for LDAP authentication allows an\nincomplete handshake sequence to be misinterpreted as a successful\ncryptographic verification. An attacker executing a Man-in-the-Middle (MITM)\nattack can inject a premature or shortcut response that bypasses complete peer\nvalidation."},"problemTypes":[{"descriptions":[{"lang":"en","description":"Improper Restriction of Communication Channel to Intended Endpoints","cweId":"CWE-923","type":"CWE"}]}],"credits":[{"lang":"en","value":"Eunsoo Kim (Autonomous Code Security team at Microsoft)","type":"finder"},{"lang":"en","value":"Eunsoo Kim","type":"remediation developer"}],"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-923","lang":"en","description":"CWE-923 Improper Restriction of Communication Channel to Intended Endpoints"}]}],"references":[{"url":"https://hackerone.com/reports/3822248","tags":["exploit"]}],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.4,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"HIGH","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-09-08T15:39:09.395825Z","id":"CVE-2026-13608","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-08T15:39:45.194Z"}}]}}