{"id":"CVE-2026-62326","state":"PUBLISHED","title":"Weblate Has Uncontrolled Resource Consumption via","description":"Weblate is a web-based continuous localization platform used to manage software translations. In versions prior to 2026.7, a user with the built-in \"Edit source\" role can store a malicious regular expression in a source string's flags that is executed without any timeout, allowing them to stall requests and deny service. Regular expressions supplied through the regex: quality check and regex placeholders are compiled during validation but later run against translation content in RegexCheck and PlaceholderCheck with no time limit, so a catastrophic-backtracking pattern like ^(a|aa)+$ can consume CPU indefinitely. Because Weblate re-runs these checks for every linked target unit in the same request when a source unit's flags change, a single edit can trigger sustained CPU-bound denial of service. This issue is fixed in version 2026.7.","publishedAt":"2026-08-26T20:36:25.043Z","updatedAt":"2026-08-27T13:52:30.709Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["WeblateOrg weblate"],"affected":[{"vendor":"WeblateOrg","product":"weblate","versions":[{"version":"< 2026.7","status":"affected"}]}],"references":["https://github.com/WeblateOrg/weblate/security/advisories/GHSA-r52j-4vjp-q949","https://github.com/WeblateOrg/weblate/commit/8fd8431414bec5c86dbc94815319fc474518286a"],"weaknesses":["CWE-400"],"ingestedAt":"2026-10-29T20:12:32.778Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/62xxx/CVE-2026-62326.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-62326","state":"PUBLISHED","datePublished":"2026-08-26T20:36:25.043Z","dateUpdated":"2026-08-27T13:52:30.709Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-07-13T19:27:58.315Z"},"containers":{"cna":{"title":"Weblate Has Uncontrolled Resource Consumption via","descriptions":[{"lang":"en","value":"Weblate is a web-based continuous localization platform used to manage software translations. In versions prior to 2026.7, a user with the built-in \"Edit source\" role can store a malicious regular expression in a source string's flags that is executed without any timeout, allowing them to stall requests and deny service. Regular expressions supplied through the regex: quality check and regex placeholders are compiled during validation but later run against translation content in RegexCheck and PlaceholderCheck with no time limit, so a catastrophic-backtracking pattern like ^(a|aa)+$ can consume CPU indefinitely. Because Weblate re-runs these checks for every linked target unit in the same request when a source unit's flags change, a single edit can trigger sustained CPU-bound denial of service. This issue is fixed in version 2026.7."}],"affected":[{"vendor":"WeblateOrg","product":"weblate","versions":[{"version":"< 2026.7","status":"affected"}]}],"references":[{"url":"https://github.com/WeblateOrg/weblate/security/advisories/GHSA-r52j-4vjp-q949","name":"https://github.com/WeblateOrg/weblate/security/advisories/GHSA-r52j-4vjp-q949","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/WeblateOrg/weblate/commit/8fd8431414bec5c86dbc94815319fc474518286a","name":"https://github.com/WeblateOrg/weblate/commit/8fd8431414bec5c86dbc94815319fc474518286a","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-400","lang":"en","description":"CWE-400: Uncontrolled Resource Consumption","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-08-26T20:36:25.043Z"},"source":{"advisory":"GHSA-r52j-4vjp-q949","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-27T13:52:24.257265Z","id":"CVE-2026-62326","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-27T13:52:30.709Z"}}]}}}