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CVE-2026-81871VulnerabilityPublished Updated

SUSE · Security update for distribution

Affects SUSESource GCVE Database

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Mentioned vulnerabilities

Authoritative record:CVE-2026-81871· Medium 6.3

Not known to be exploited · CVSS 6.3 Medium : upgrade SUSE opentelemetry-go to 0.21.0 when convenient.

Data as of 10 Nov 2026, 20:06 UTC

CVSS 4.0 base score
6.3Medium
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 0.21.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 16 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.

What to do

Upgrade opentelemetry-go and github.com/open-telemetry/opentelemetry-go to 0.21.0.

Affected software

ProductAffectedFixed in
open-telemetryopentelemetry-goAffected
  • <0.21.0
Fixed in
  • 0.21.0
Gogithub.com/open-telemetry/opentelemetry-gopkg:golang/github.com/open-telemetry/opentelemetry-goOther threatsAffected
  • <0.21.0
Fixed in
  • 0.21.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

This update for distribution fixes the following issues: - CVE-2026-81871: go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc: OpenTelemetry-Go: TLS certificate bypass allows log telemetry interception and alteration (bsc#1281468). - CVE-2026-81872: go.opentelemetry.io/otel/sdk/log: OpenTelemetry-Go: Denial of Service via attacker-driven log emission (bsc#1281469).

References

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