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Advisory record · GHSA-c759-cx9p-mrwq

lightrag-hku: Plaintext Passwords Compared Without Constant-Time Function

CVSS 5.9 MediumEPSS 0.0045 · 38th percentile

Published by the GitHub Advisory Database at 22 Sept 2026, 20:40 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
lightrag-hkuPyPI<1.5.51.5.5
Identifiers
GHSA-c759-cx9p-mrwq · CVE-2026-85725 · PYSEC-2026-4061
Weakness (CWE)
CWE-208
Tags
Published
22 Sept 2026
Updated
1 Oct 2026

Machine-written summary

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

The lightrag-hku package, versions before 1.5.5, compares plaintext passwords stored in AUTH_ACCOUNTS with a non-constant-time comparison. An attacker with low-latency access could use timing differences to recover the password one character at a time, and this affects only deployments that store unhashed passwords there. Upgrade to lightrag-hku 1.5.5 or later. Using hashed passwords in AUTH_ACCOUNTS avoids the issue.

Written 1 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
5.9 Medium 3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0045, the 38th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:09 UTC First seen by agentprime
  2. 31 Oct 2026, 14:09 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.