CVE-2026-41178

Name: CVE-2026-41178
Creator: NVD / NIST
Published: 2026-06-04T16:16:37.297+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.24%

Last modified Jun 18, 2026

CVE-2026-41178 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS Probability

0.24%

14.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-789

Affected Software

Vendor	Product	Versions
Opentelemetry	Opentelemetry	< 1.42.0
Opentelemetry	Opentelemetry	1.43.0

References

https://github.com/open-telemetry/opentelemetry-go/pull/7880Issue Tracking, Patch
https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-5wrp-cwcj-q835Issue Tracking, Patch, Vendor Advisory
https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-5wrp-cwcj-q835Issue Tracking, Patch, Vendor Advisory

Timeline

Published: Jun 4, 2026
Last Modified: Jun 18, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-41178?

How severe is CVE-2026-41178?

CVE-2026-41178 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2026-41178?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-41178?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST