---
cve: "CVE-2026-29181"
severity: "HIGH"
cvss: 7.5
epss: "57%"
vendor: "open-telemetry"
kev: false
exploited: false
published: "2026-04-07 21:17:16"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-12T03:22:57+02:00"
---

# CVE-2026-29181

> 7.5 HIGH · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Keine | good |
| I Integrität | Keine | good |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- 4575a9774dd9415ffc858dd34955493b0031065a (Commit)
- 07fa42463ccd05b067b0939aa4f1c57673ac6d6d (Commit)

## Referenzen

- <https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-mh2q-q3fh-2475>
- <https://access.redhat.com/errata/RHSA-2026:25271>
- <https://access.redhat.com/errata/RHSA-2026:47735>
- <https://access.redhat.com/errata/RHSA-2026:61314>
- <https://access.redhat.com/errata/RHSA-2026:63140>
- <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>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-29181) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_