Your RSA-2048 keys break in 2030. Find every one of them before attackers do.
🐹
🐹 Go
Not in CISA KEV
MEDIUM severity

GHSA-8wxp-xxp2-rcgx — volcano

MEDIUM

GHSA-8wxp-xxp2-rcgx is a medium-severity (CVSS 6.8) Uncontrolled Resource Consumption vulnerability in volcano.sh/volcano. A fix is available for volcano.sh/volcano — see the affected versions and patch details below.

Volcano's webhook server vulnerable to OOM due to unbounded HTTP request body size

Also known asCVE-2026-44247GO-2026-5269
Published
May 8, 2026
Updated
Jun 25, 2026
Affected
3 pkgs
Patched
3 / 3
Exploits
None indexed
Exploitation data as of Sep 26, 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-8wxp-xxp2-rcgx.

EPSS Exploitation Probability

via FIRST.org ↗
0.3%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs17th percentile — riskier than 17% of all scored CVEsHighest risk

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

How urgent is this, really

GHSA-8wxp-xxp2-rcgx by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 379,842 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

3 pkgs affected
🐹volcano.sh/volcano🐹volcano.sh/volcano🐹volcano.sh/volcano

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

Description

Impact

The Volcano webhook server does not enforce a size limit on incoming HTTP request bodies. Any in-cluster pod that can reach the webhook endpoint may send an arbitrarily large request body, potentially causing the webhook server to be killed by OOM. All Volcano deployments with the webhook server exposed to in-cluster traffic are affected.

Patches

This issue will be fixed in the following versions:

  • v1.14.2
  • v1.13.3
  • v1.12.4

Users running versions below these should upgrade accordingly.

Workarounds

No known workarounds. Upgrade to the patched versions listed above.

Affected Packages

3 total 3 fixed
EcosystemPackageVulnerable rangeFix
🐹Govolcano.sh/volcanoall versions1.12.4go get volcano.sh/volcano@v1.12.4
🐹Govolcano.sh/volcano≥ 1.13.0&&< 1.13.31.13.3go get volcano.sh/volcano@v1.13.3
🐹Govolcano.sh/volcano≥ 1.14.0&&< 1.14.21.14.2go get volcano.sh/volcano@v1.14.2

Affected Products

1 product · 3 configurations
Application
volcanolinuxfoundation
≥ 1.14.0 && < 1.14.2
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 volcano.sh/volcano, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update volcano.sh/volcano to 1.12.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-8wxp-xxp2-rcgx is resolved across your whole dependency graph.

  3. Workarounds

    Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Frequently Asked Questions

### Impact The Volcano webhook server does not enforce a size limit on incoming HTTP request bodies. Any in-cluster pod that can reach the webhook endpoint may send an arbitrarily large request body, potentially causing the webhook server to be killed by OOM. All Volcano deployments with the webhook server exposed to in-cluster traffic are affected. ### Patches This issue will be fixed in the following versions: - v1.14.2 - v1.13.3 - v1.12.4 Users running versions below these should upgrade accordingly. ### Workarounds No known workarounds. Upgrade to the patched versions listed above.
O3 Security · Impact-Aware SCA

Is GHSA-8wxp-xxp2-rcgx in your dependencies?

Find it across Go, including transitive dependencies.

Scan my dependencies How O3 SCA works
GHSA-8wxp-xxp2-rcgx: volcano (Medium 6.8) | O3 Security