CRLF Injection Affecting rmt-server-config package, versions <2.27-150700.3.20.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.02% (7th percentile)

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  • Snyk IDSNYK-SLES157-RMTSERVERCONFIG-16538632
  • published8 May 2026
  • disclosed7 May 2026

Introduced: 7 May 2026

CVE-2026-26962  (opens in a new tab)
CWE-93  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 rmt-server-config to version 2.27-150700.3.20.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rmt-server-config package and not the rmt-server-config package as distributed by SLES. See How to fix? for SLES:15.7 relevant fixed versions and status.

Rack is a modular Ruby web server interface. From version 3.2.0 to before version 3.2.6, Rack::Multipart::Parser unfolds folded multipart part headers incorrectly. When a multipart header contains an obs-fold sequence, Rack preserves the embedded CRLF in parsed parameter values such as filename or name instead of removing the folded line break during unfolding. As a result, applications that later reuse those parsed values in HTTP response headers may be vulnerable to downstream header injection or response splitting. This issue has been patched in version 3.2.6.

CVSS Base Scores

version 3.1