CVE-2026-41178

Name	CVE-2026-41178
Description	OpenTelemetry-Go is the Go implementation of OpenTelemetry. Versions 1.41.0 and 1.43.0 removed raw-length rejection and it causes `Parse` to process arbitrarily large/invalid baggage headers and log errors, enabling DoS via oversized inputs. Versions 1.42.0 and 1.44.0 fix the issue.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
golang-opentelemetry-otel (PTS)	bookworm	1.1.0-2	vulnerable
	trixie	1.31.0-4	vulnerable
	forky	1.31.0-6	vulnerable
	sid	1.43.0-4	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
golang-opentelemetry-otel	source	(unstable)	(unfixed)

Notes

https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-5wrp-cwcj-q835
https://github.com/open-telemetry/opentelemetry-go/pull/7880