CVE detail
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 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.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 20.8 · diversity 18.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
7 source links · newest first
Information published.
vendormsrc.microsoft.comMay 12, 2026, 8:40 AM- https://access.redhat.com/errata/RHSA-2026:47735access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comApr 7, 2026, 9:17 PM - https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-29181.jsonsecurity.access.redhat.com
No excerpt available.
Vendor Advisorysecurity.access.redhat.comApr 7, 2026, 9:17 PM - https://bugzilla.redhat.com/show_bug.cgi?id=2456252bugzilla.redhat.com
No excerpt available.
Exploitbugzilla.redhat.comApr 7, 2026, 9:17 PM - https://access.redhat.com/security/cve/CVE-2026-29181access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comApr 7, 2026, 9:17 PM - https://access.redhat.com/errata/RHSA-2026:25271access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comApr 7, 2026, 9:17 PM - https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-mh2q-q3fh-2475github.com
No excerpt available.
Exploitgithub.comApr 7, 2026, 9:17 PM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
Related records
Similar CVEs
6 related CVEs with shared weakness or product evidence
- CVE-2026-41078CVSS 5.9 · Medium
OpenTelemetry dotnet is a dotnet telemetry framework. In 1.6.0-rc.1 and earlier, OpenTelemetry.Exporter.Jaeger may allow sustained memory pressure when the internal pooled-list si…
- CVE-2023-47108CVSS 7.5 · High
OpenTelemetry-Go Contrib is a collection of third-party packages for OpenTelemetry-Go. Starting in version 0.37.0 and prior to version 0.46.0, the grpc Unary Server Interceptor ou…
- CVE-2023-45142CVSS 7.5 · High
OpenTelemetry-Go Contrib is a collection of third-party packages for OpenTelemetry-Go. A handler wrapper out of the box adds labels `http.user_agent` and `http.method` that have u…
- CVE-2026-67353CVSS 6.9 · Medium
guzzlehttp/guzzle versions before 7.15.1 contain a denial of service vulnerability in the CookieJar that accepts unlimited Set-Cookie header fields with no size restrictions. Atta…
- CVE-2026-67317CVSS 6.3 · Medium
axios versions 1.7.0 before 1.18.0 fail to enforce maxBodyLength for WHATWG ReadableStream request bodies in the fetch adapter when Content-Length cannot be determined. Attackers…
- CVE-2026-67297CVSS 8.7 · High
FreeRDP before 3.29.0 fails to enforce the RESPONSE_SIZE_LIMIT when processing Transfer-Encoding: chunked HTTP responses in http_response_recv_body(). Attackers controlling a mali…