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MEDIUM severity

Invalid HTTP requests in Reactor Netty HTTP Server may reveal access tokensGHSA-7w4x-4h67-pgmv

MEDIUM

GHSA-7w4x-4h67-pgmv is a medium-severity (CVSS 4.3) CWE-532 vulnerability in io.projectreactor.netty:reactor-netty-http. A fix is available for io.projectreactor.netty:reactor-netty-http — see the affected versions and patch details below.

Also known asCVE-2022-31684
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 9, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for GHSA-7w4x-4h67-pgmv.

EPSS Exploitation Probability

via FIRST.org ↗
0.8%probability of exploitation in next 30 days
Lower Risk+0.00%
Lower risk than most CVEs56th percentile — riskier than 56% of all scored CVEsHighest risk
0.00%0.42%0.85%1.27%0.4%0.8%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
☕io.projectreactor.netty:reactor-netty-http

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

Reactor Netty HTTP Server, in versions 1.0.11 - 1.0.23, may request log headers in some cases of invalid HTTP requests. The logged headers may reveal valid access tokens to those with access to server logs. This may affect only invalid HTTP requests where logging at WARN level is enabled.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenio.projectreactor.netty:reactor-netty-http≥ 1.0.11&&< 1.0.241.0.24io.projectreactor.netty:reactor-netty-http:1.0.24

Affected Products

1 product · 1 configurations
Application
reactor nettybroadcom
≥ 1.0.11 && ≤ 1.0.23
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for io.projectreactor.netty:reactor-netty-http, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update io.projectreactor.netty:reactor-netty-http to 1.0.24 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-7w4x-4h67-pgmv is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatLow
ProductFixed inAdvisory
Red Hat support for Spring Boot 2.7.13reactor-netty-httpRHSA-2023:4612
RHINT Camel-Springboot 3.18.3reactor-netty-httpRHSA-2022:8902

Frequently Asked Questions

Reactor Netty HTTP Server, in versions 1.0.11 - 1.0.23, may request log headers in some cases of invalid HTTP requests. The logged headers may reveal valid access tokens to those with access to server logs. This may affect only invalid HTTP requests where logging at WARN level is enabled.
O3 Security · Impact-Aware SCA

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Invalid HTTP requests in Reactor Netty HTTP Server may…