Description
OpenTelemetry-Go is the Go implementation of OpenTelemetry. From 1.36.0 to 1.40.0, multi-value baggage: header extraction parses each header field-value independently and aggregates members across values. This allows an attacker to amplify cpu and allocations by sending many baggage: header lines, even when each individual value is within the 8192-byte per-value parse limit. This vulnerability is fixed in 1.41.0.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
open-telemetry opentelemetry-go
>= 1.36.0, < 1.41.0affected
References
- https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-mh2q-q3fh-2475 ↗
- https://access.redhat.com/security/cve/CVE-2026-29181 ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=2456252 ↗
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-29181.json ↗
- https://access.redhat.com/errata/RHSA-2026:63140 ↗
- https://access.redhat.com/errata/RHSA-2026:61314 ↗
- https://access.redhat.com/errata/RHSA-2026:66521 ↗
- https://access.redhat.com/errata/RHSA-2026:25271 ↗
- https://access.redhat.com/errata/RHSA-2026:47735 ↗