{"id":"CVE-2026-33857","state":"PUBLISHED","title":"Apache HTTP Server: Off-by-one OOB reads in AJP getter functions","description":"Out-of-bounds Read vulnerability in mod_proxy_ajp of \n\nApache HTTP Server.\n\nThis issue affects Apache HTTP Server: through 2.4.66.\n\nUsers are recommended to upgrade to version 2.4.67, which fixes the issue.","publishedAt":"2026-05-04T13:07:30.753Z","updatedAt":"2026-05-04T17:32:50.362Z","severity":{"score":5.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","source":"CISA-ADP"},"assigner":"apache","products":["Apache Software Foundation Apache HTTP Server"],"affected":[{"vendor":"Apache Software Foundation","product":"Apache HTTP Server","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"2.4.66","versionType":"semver"}]}],"references":["https://httpd.apache.org/security/vulnerabilities_24.html","http://www.openwall.com/lists/oss-security/2026/05/04/15"],"weaknesses":["CWE-125"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/33xxx/CVE-2026-33857.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-33857","state":"PUBLISHED","datePublished":"2026-05-04T13:07:30.753Z","dateUpdated":"2026-05-04T17:32:50.362Z","assignerShortName":"apache","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateReserved":"2026-03-24T09:20:11.213Z"},"containers":{"cna":{"title":"Apache HTTP Server: Off-by-one OOB reads in AJP getter functions","descriptions":[{"lang":"en","value":"Out-of-bounds Read vulnerability in mod_proxy_ajp of \n\nApache HTTP Server.\n\nThis issue affects Apache HTTP Server: through 2.4.66.\n\nUsers are recommended to upgrade to version 2.4.67, which fixes the issue."}],"affected":[{"vendor":"Apache Software Foundation","product":"Apache HTTP Server","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"2.4.66","versionType":"semver"}]}],"references":[{"url":"https://httpd.apache.org/security/vulnerabilities_24.html","tags":["vendor-advisory"]}],"metrics":[{"other":{"content":{"text":"low"},"type":"Textual description of severity"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-125","description":"CWE-125 Out-of-bounds Read","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"apache","orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateUpdated":"2026-05-04T13:07:30.753Z"},"credits":[{"lang":"en","type":"finder","value":"Elhanan Haenel"}],"source":{"discovery":"UNKNOWN"},"timeline":[{"lang":"en","time":"2026-03-20T12:00:00.000Z","value":"Reported"},{"lang":"en","time":"2026-05-04T12:00:00.000Z","value":"fixed by r1933341 in 2.4.x"}],"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.3,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"LOW"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-05-04T13:58:58.653462Z","id":"CVE-2026-33857","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-04T13:59:45.381Z"}},{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/05/04/15"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2026-05-04T17:32:50.362Z"}}]}}}