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Resource Exhaustion The advisory has been revoked - it doesn't affect any version of package gitlab-rails-ce-18.1  (opens in a new tab)

Threat Intelligence

EPSS
0.53% (67th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-GITLABRAILSCE181-14912810
  • published12 Jan 2026
  • disclosed28 Apr 2025
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Introduced: 28 Apr 2025

CVE-2025-43857  (opens in a new tab)
CWE-400  (opens in a new tab)
CWE-405  (opens in a new tab)
CWE-770  (opens in a new tab)
CWE-789  (opens in a new tab)

Amendment

The Chainguard security team deemed this advisory irrelevant for Chainguard:latest.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gitlab-rails-ce-18.1 package and not the gitlab-rails-ce-18.1 package as distributed by Chainguard.

Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to versions 0.5.7, 0.4.20, 0.3.9, and 0.2.5, there is a possibility for denial of service by memory exhaustion when net-imap reads server responses. At any time while the client is connected, a malicious server can send can send a "literal" byte count, which is automatically read by the client's receiver thread. The response reader immediately allocates memory for the number of bytes indicated by the server response. This should not be an issue when securely connecting to trusted IMAP servers that are well-behaved. It can affect insecure connections and buggy, untrusted, or compromised servers (for example, connecting to a user supplied hostname). This issue has been patched in versions 0.5.7, 0.4.20, 0.3.9, and 0.2.5.