Connect your agent
AdvisoriesCriticalCheck your lockfilePluginHow it worksPricing Connect your agent

Advisory record · GHSA-9jxr-mwpp-w643

Improper header validation in httpsoft/http-message

CVSS 5.3 Medium

Published by the GitHub Advisory Database at 21 Apr 2023, 20:27 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
httpsoft/http-messagePackagist<1.0.121.0.12
Identifiers
GHSA-9jxr-mwpp-w643 · PKSA-1sgc-2dst-ytpv
Weakness (CWE)
CWE-436
Tags
Published
21 Apr 2023
Updated
6 Dec 2024

Machine-written summary

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

Versions of httpsoft/http-message before 1.0.12 do not properly validate HTTP header names and values, allowing newline characters to be inserted into them. The source describes this as potentially letting an attacker end the header list early in servers that accept a bare double newline as a terminator, though it gives few details about the exact conditions or impact. Upgrade httpsoft/http-message to version 1.0.12 or later; no workarounds are listed.

Written 4 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
5.3 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS No score.

Timeline

  1. 31 Oct 2026, 14:28 UTC First seen by agentprime
  2. 31 Oct 2026, 14:28 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.