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CVE-2025-68156VulnerabilityPublished Updated

Red Hat Security Advisory: opentelemetry-collector security update

Affects Red Hat opentelemetry-collectorSource GCVE Database

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Authoritative record:CVE-2025-68156· High 7.5

Not known to be exploited · CVSS 7.5 High : upgrade Red Hat expr to 1.17.7 soon.

Data as of 5 Nov 2026, 17:34 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 1.17.7
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 16 Dec 2025

  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 5 Nov 2026.

What to do

Upgrade github.com/expr-lang/expr to 1.17.7.

Affected software

ProductAffectedFixed in
Gogithub.com/expr-lang/exprpkg:golang/github.com/expr-lang/exprOther threatsAffected
  • <1.17.7
Fixed in
  • 1.17.7

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

Description

Collector with the supported components for a Red Hat build of OpenTelemetry Security Fix(es): * github.com/expr-lang/expr: Expr: Denial of Service via uncontrolled recursion in expression evaluation (CVE-2025-68156) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

References

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