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Advisory record · GHSA-694p-xrhg-x3wm

Micronaut's HTTP client is vulnerable to HTTP Request Header Injection

CVSS 9.8 CriticalCriticalEPSS 0.018 · 78th percentile

Critical, because:

  • CVSS score 9.8: 9.0 or more.

How we decide what’s critical

Published by the GitHub Advisory Database at 30 Mar 2020, 20:54 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
io.micronaut:micronaut-http-clientMaven<1.2.11 || >=1.3.0, <1.3.21.2.11, 1.3.2
Identifiers
GHSA-694p-xrhg-x3wm · CVE-2020-7611 · SNYK-JAVA-IOMICRONAUT-561342
Weakness (CWE)
CWE-444
Tags
Published
30 Mar 2020
Updated
8 Jul 2026

Machine-written summary

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

Micronaut's io.micronaut:micronaut-http-client Maven package, versions below 1.2.11 and from 1.3.0 up to but not including 1.3.2, does not validate request header values passed to it. An attacker who can supply query values or form data that an application forwards as headers can inject headers and alter the request body, enabling a form of server-side request forgery. Upgrade to version 1.2.11 or 1.3.2 or later. Avoid passing user-supplied request parameters directly as client headers.

Written 2 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
9.8 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS 0.018, the 78th percentile, on 7 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:19 UTC First seen by agentprime
  2. 31 Oct 2026, 14:19 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.