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Medium5.3Red Hat Linux

Medium [CVE-2026-42507] Golang net/textproto: Misleading error messages via input injection

This medium-severity Red Hat Linux advisory covers CVE-2026-42507 affecting Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 1, rhosdt/tempo-gateway-rhel9:1782501200.

CVE-2026-42507 Published Jun 2, 2026
CVE-2026-42507
Affected products & platforms
Red Hat LinuxUnclassified
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Summary

Golang net/textproto: Misleading error messages via input injection. Red Hat rates this moderate (CVSS 5.3).

Weakness: CWE-117. Affected package(s): rhosdt/tempo-gateway-rhel9:1782501200, rhosdt/tempo-rhel9-operator:1782501195, golang1, golang, rhosdt/tempo-rhel9:1782501196, rhosdt/tempo-jaeger-query-rhel9:1782498923.

Resolved in Red Hat advisory RHSA-2026:23262 — update the affected packages (`sudo dnf update`).

Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 1.

Affected versions
  • rhosdt/tempo-gateway-rhel9:1782501200
  • rhosdt/tempo-rhel9-operator:1782501195
  • golang1-25-main-1.25.11-2.hum1
  • golang-0:1.26.4-1.el9_8
  • golang1-26-main-1.26.4-2.hum1
  • rhosdt/tempo-rhel9:1782501196
  • golang-0:1.26.4-1.el10_2
  • rhosdt/tempo-jaeger-query-rhel9:1782498923
  • rhosdt/tempo-query-rhel9:1782501220
  • rhosdt/tempo-gateway-opa-rhel9:1782501180
  • rhosdt/tempo-operator-bundle:1782510941

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions
  • RHSA-2026:23262

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • Update the affected package(s) to the fixed version shipped in RHSA-2026:23262 (`sudo dnf update` / `yum update`).

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

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