Red Hat Security AdvisoryRHSA-2026:53412
opentelemetry-collector security update
Released 2026-08-11 · Red Hat rating Important · View on Red Hat →
Fixed in
- Red Hat Enterprise Linux AppStream E4S (v.9.4) opentelemetry-collector-0.152.1-1.el9_4
Fixes 8 records
Priority MEDIUM 47
The ToASCII and ToUnicode functions incorrectly accept Punycode-encoded labels that decode to an ASCII-only label.
CVSS 3.1CRITICAL 9.6· Network · Low privileges · No interaction · EPSS 0.01834 · Published 2026-05-22 · Partial fix · 1.25.13, 1.26.6 +2 CWE-1289
Priority MEDIUM 40
Prometheus is an open-source monitoring system and time series database.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00813 · Published 2026-05-04 · Partial fix · 3.5.3, 3.11.3 +2 CWE-400
Priority MEDIUM 40
When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00875 · Published 2026-05-07 · Partial fix · 1.25.10, 1.26.3 CWE-415
Priority LOW 39
Prometheus is an open-source monitoring system and time series database.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00352 · Published 2026-05-04 · Partial fix · 3.5.3, 3.11.3 +1 CWE-200
Priority LOW 38
Origin Validation Error, Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting'), Uncontrolled Resourc…
CVSS 3.1HIGH 7.3· Network · No auth · No interaction · EPSS 0.00379 · Published 2026-05-05 · Partial fix · 0.23.0 CWE-113
Priority LOW 30
(*x509.Certificate).VerifyHostname previously called matchHostnames in a loop over all DNS Subject Alternative Name (SAN) entries.
CVSS 3.1MEDIUM 6.5· Network · No auth · No interaction · EPSS 0.00591 · Published 2026-06-02 · Partial fix · 1.25.11, 1.26.4
Priority LOW 27
Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree.
CVSS 3.1MEDIUM 6.1· Network · No auth · User interaction · EPSS 0.00223 · Published 2026-05-22 · Partial fix · 0.55.0 CWE-1021
Priority LOW 27
Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree.
CVSS 3.1MEDIUM 6.1· Network · No auth · User interaction · EPSS 0.00223 · Published 2026-05-22 · Partial fix · 0.55.0 CWE-1021
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