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Advisory record · GHSA-2hcp-gjrf-7fhc

Micronaut Framework vulnerable to a Denial of Service in HTML error response caching

CVSS 7.5 HighEPSS 0.0058 · 48th percentile

Published by the GitHub Advisory Database at 17 Mar 2026, 18:39 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
io.micronaut:micronaut-http-serverMaven>=4.7.0, <4.10.174.10.17
Identifiers
GHSA-2hcp-gjrf-7fhc · CVE-2026-33012
Weakness (CWE)
CWE-770
Tags
Published
17 Mar 2026
Updated
10 Sept 2026

Machine-written summary

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

io.micronaut:micronaut-http-server versions 4.7.0 before 4.10.17 cache HTML error responses in an unbounded map with no eviction. A remote attacker can exploit this when an exception message includes attacker-influenced input, such as query parameters, causing heap exhaustion and a denial of service. Upgrade to 4.10.17.

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
7.5 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0058, the 48th percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:17 UTC First seen by agentprime
  2. 31 Oct 2026, 14:17 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.