Source: golang-github-getkin-kin-openapi Version: 0.135.0-1 Severity: important Tags: security upstream Forwarded: https://github.com/getkin/kin-openapi/pull/923 X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerability was published for golang-github-getkin-kin-openapi. CVE-2026-77354[0]: | kin-openapi is a Go project for handling OpenAPI files. From 0.124.0 | until 0.142.0, openapi3filter.sliceMapToSlice in | openapi3filter/req_resp_decoder.go converts attacker-controlled | sparse indexes from a deepObject query parameter into a dense slice | by allocating entries from zero through the largest supplied index, | after which buildResObj creates another slice of the same length. | This allocation occurs before schema validation, so maxItems does | not prevent it. An unauthenticated client can send a small query | such as param[items][50000000]=x to an endpoint whose deepObject | schema contains an array, forcing multi-gigabyte heap allocation and | causing an OOM kill or restart loop. Other request-body encodings | and styled parameters that do not produce bracketed integer indexes | are not affected. This issue is fixed in version 0.142.0. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-77354 https://www.cve.org/CVERecord?id=CVE-2026-77354 [1] https://github.com/getkin/kin-openapi/pull/923 [2] https://github.com/getkin/kin-openapi/security/advisories/GHSA-xhj3-7xw9-vr34 [3] https://github.com/getkin/kin-openapi/commit/1223a0f215d2cf9beb2d9eb9ea2649d001c21388 Please adjust the affected versions in the BTS as needed. Regards, Salvatore
