{"id":"CVE-2026-48834","aliases":["EUVD-2026-53396","GHSA-9mxc-x85j-v2wc"],"status":"published","title":"Apache Answer: Denial of service via crafted Accept-Language header parsing","description":"Improper Handling of Length Parameter Inconsistency vulnerability in Apache Answer.\n\nThis issue affects Apache Answer: through 2.0.1.\n\nUnauthenticated attackers can cause a denial of service via a specially crafted Accept-Language header that triggers excessive CPU consumption during parsing.\nUsers are recommended to upgrade to version 2.0.2, which fixes the issue.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-11","score":0.00764,"percentile":0.55862,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400"],"published":"2026-08-05T15:07:35Z","modified":"2026-10-28T02:31:09Z","products":[{"vendor":"apache","product":"answer"},{"vendor":"apache software foundation","product":"apache answer"}],"references":[{"url":"https://lists.apache.org/thread/0yg5smwnbrhqs55m5h61gn42mcs8s95p","tags":["vendor-advisory","Mailing List","Vendor Advisory","advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2026/08/05/9","tags":["Mailing List","Third Party Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-48834","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-9mxc-x85j-v2wc"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48834.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-48834","title":"Apache Answer: Denial of service via crafted Accept-Language header parsing","description":"Improper Handling of Length Parameter Inconsistency vulnerability in Apache Answer.\n\nThis issue affects Apache Answer: through 2.0.1.\n\nUnauthenticated attackers can cause a denial of service via a specially crafted Accept-Language header that triggers excessive CPU consumption during parsing.\nUsers are recommended to upgrade to version 2.0.2, which fixes the issue.","status":"published","published":"2026-08-05T15:07:35.44Z","modified":"2026-08-06T14:35:47.589Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T13:50:49.872037Z"}],"euvd":[{"id":"EUVD-2026-53396","description":"Improper Handling of Length Parameter Inconsistency vulnerability in Apache Answer.\n\nThis issue affects Apache Answer: through 2.0.1.\n\nUnauthenticated attackers can cause a denial of service via a specially crafted Accept-Language header that triggers excessive CPU consumption during parsing.\nUsers are recommended to upgrade to version 2.0.2, which fixes the issue.","status":"published","published":"2026-08-05T15:07:35Z","modified":"2026-08-06T14:35:47Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T18:02:08.553271Z"}],"ghsa":[{"id":"GHSA-9mxc-x85j-v2wc","title":"Improper Handling of Length Parameter Inconsistency vulnerability in Apache Answer.\n\nThis issue...","description":"Improper Handling of Length Parameter Inconsistency vulnerability in Apache Answer.\n\nThis issue affects Apache Answer: through 2.0.1.\n\nUnauthenticated attackers can cause a denial of service via a specially crafted Accept-Language header that triggers excessive CPU consumption during parsing.\nUsers are recommended to upgrade to version 2.0.2, which fixes the issue.","status":"published","published":"2026-08-05T18:31:35Z","modified":"2026-08-06T15:32:37Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:10:09.171432Z"}],"nvd":[{"id":"CVE-2026-48834","description":"Improper Handling of Length Parameter Inconsistency vulnerability in Apache Answer.\n\nThis issue affects Apache Answer: through 2.0.1.\n\nUnauthenticated attackers can cause a denial of service via a specially crafted Accept-Language header that triggers excessive CPU consumption during parsing.\nUsers are recommended to upgrade to version 2.0.2, which fixes the issue.","status":"published","published":"2026-08-05T16:16:56.98Z","modified":"2026-10-23T21:10:00.157Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:12:35.031043Z"}],"osv":[{"id":"CVE-2026-48834","title":"Apache Answer: Denial of service via crafted Accept-Language header parsing","description":"Improper Handling of Length Parameter Inconsistency vulnerability in Apache Answer.\n\nThis issue affects Apache Answer: through 2.0.1.\n\nUnauthenticated attackers can cause a denial of service via a specially crafted Accept-Language header that triggers excessive CPU consumption during parsing.\nUsers are recommended to upgrade to version 2.0.2, which fixes the issue.","status":"published","published":"2026-08-05T15:07:35.44Z","modified":"2026-10-28T02:31:09.418832155Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:45:06.701612Z"}]}}