CVE catalog
CVE-2026-29181
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 val
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.79% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | golang-opentelemetry-otel | sid | 1.46.0-3 | not affected |
| Debian | golang-opentelemetry-otel | forky | 1.46.0-2 | not affected |
| Debian | golang-opentelemetry-otel | trixie | 1.31.0-4 | not affected |
| Debian | golang-opentelemetry-otel | bookworm | 1.1.0-2 | not affected |
| Cpe | opentelemetry | Not reported | 1.41.0 | fixed |
| Go | go.opentelemetry.io/otel | Not reported | 1.41.0 | fixed |
| Cpe | opentelemetry | Not reported | 1.41.0 | fixed |
| Opensuse | etcd | tumbleweed | 3.6.13-1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | golang-opentelemetry-otel | source | sid | Not affected | unimportant | Not reported | Not reported |
| Debian | golang-opentelemetry-otel | source | forky | Not affected | unimportant | Not reported | Not reported |
| Debian | golang-opentelemetry-otel | source | trixie | Not affected | unimportant | Not reported | Not reported |
| Debian | golang-opentelemetry-otel | source | bookworm | Not affected | unimportant | Not reported | Not reported |
| Cpe | opentelemetry | cpe | Not reported | 1.41.0 | Not reported | Not reported | Not reported |
| Go | go.opentelemetry.io/otel | Go | Not reported | 1.41.0 | Not reported | GHSA-MH2Q-Q3FH-2475 | Not reported |
| Cpe | opentelemetry | cpe | Not reported | 1.41.0 | Not reported | NVD-CVE-2026-29181 | Not reported |
| Opensuse | etcd | rpm | tumbleweed | 3.6.13-1.1 | Not reported | OPENSUSE-SU-2026:11173-1 | Not reported |
OpenFactory catalog packages
[openSUSE Tumbleweed]
- [etcdctl]Unknown
Source package: [etcd]
Details (1)
3.7.1-1.2· x86_64 · tumbleweedUnknown · Fixed:
3.6.13-1.1Version impact unknown
nvd · etcd · opensuse · tumbleweed
- [etcdutl]Unknown
Source package: [etcd]
Details (1)
3.7.1-1.2· x86_64 · tumbleweedUnknown · Fixed:
3.6.13-1.1Version impact unknown
nvd · etcd · opensuse · tumbleweed
- [etcd]Fixed
Source package: [etcd]
Details (1)
3.7.1-1.2· x86_64 · tumbleweedFixed · Fixed:
3.6.13-1.1nvd · etcd · opensuse · tumbleweed
[Debian 12 (Bookworm)]
- [golang-opentelemetry-otel-dev]Not affected
Source package: [golang-opentelemetry-otel]
Details (2)
1.1.0-2· all · bookwormNot affected
nvd · golang-opentelemetry-otel · debian · bookworm
1.1.0-2· all · bookwormNot affected
nvd · golang-opentelemetry-otel · debian · bookworm
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2026_2493-1.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-29181]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-29181]
- [https://osv.dev/vulnerability/GHSA-mh2q-q3fh-2475]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11173-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-29181]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-29181.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-3046.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [Go Vulnerability Database] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]