CVE-2026-62160
- Source
- https://cve.org/CVERecord?id=CVE-2026-62160
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-62160.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-62160
- Aliases
- Published
- 2026-10-30T18:26:29Z
- Modified
- 2026-10-31T10:30:36Z
- Severity
-
- 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Daptin: ParseAcceptLanguage `_` separator bypass enables >250x CPU amplification via Accept-Language header in LanguageMiddleware
- Details
-
Daptin is a GraphQL/JSON-API headless CMS. Prior to 0.12.26, the global
LanguageMiddlewareinserver/language.gopasses the rawAccept-Languageheader fromLanguageMiddlewareFuncthroughGetLanguagePreferencetogolang.org/x/text/language.ParseAcceptLanguagewithout a size or shape filter. The guard for CVE-2022-32149 counts hyphens but not underscores, even though the internal parser normalizes underscores to hyphens. Long lists of underscore-separated language subtags longer than eight characters bypass the guard. These subtags fail thelen <= 8length check ingolang.org/x/text/internal/language/parse.go, causing repeatedgobbleoperations to move the entire remaining buffer throughruntime.memmove. With many invalid subtags, this repeated buffer movement takes quadratic work. Unauthenticated requests to the public landing page or/apican consume disproportionate CPU, with a 256 KiB header already causing seconds of processing and larger input permitted by the default 1 MiB header ceiling.resource.CheckErralso logs the entire invalid header, amplifying cost, while normal successful HTTP responses can conceal the denial-of-service traffic. Repeated requests can saturate server CPU. This issue is fixed in version 0.12.26. - Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-400", "CWE-407" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62160.json" }- References
Affected packages
Git / github.com/daptin/daptin
Affected ranges
- Type
- GIT
- Repo
- https://github.com/daptin/daptin
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "0" }, { "fixed": "0.12.26" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "fixed": "2d70950979b51eb6c8b4234dd50558b608ad2ffe" } ], "source": "REFERENCES_COMMIT" } ] }