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Advisory record · GHSA-662x-8wvj-2276

pageant: unbounded frame buffering on peer-controlled 4-byte length prefix (memory-exhaustion DoS)

CVSS 2.3 LowEPSS 0.0029 · 22nd percentile

Published by the GitHub Advisory Database at 30 Oct 2026, 22:59 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
pageantcrates.io>=0.2.0, <0.2.50.2.5
Identifiers
GHSA-662x-8wvj-2276 · CVE-2026-116775
Weakness (CWE)
CWE-770
Tags
Published
30 Oct 2026
Updated
30 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

GHSA-662x-8wvj-2276 affects the pageant crate versions from 0.2.0 before 0.2.5. The stream reader buffers data up to the length claimed in a 4-byte prefix without checking that length, so a peer such as a malicious SSH server can force large memory growth or stall a partial buffer indefinitely. Upgrade to pageant 0.2.5, which is the fixed version.

Written 3 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
2.3 Low 4.0 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0029, the 22nd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 27 Oct 2026, 20:27 UTC Confirmed by the CVE List
  2. 27 Oct 2026, 21:18 UTC Confirmed by NVD
  3. 31 Oct 2026, 14:24 UTC First seen by agentprime
  4. 31 Oct 2026, 14:24 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.