How severe is GHSA-r58x-wjg8-63m9?

No CVSS score has been assigned to GHSA-r58x-wjg8-63m9 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by GHSA-r58x-wjg8-63m9?

GHSA-r58x-wjg8-63m9 affects the following packages: org.apache.james:james-server (Maven). Ecosystems affected: Maven.

How do I fix GHSA-r58x-wjg8-63m9?

Update org.apache.james:james-server to 3.6.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-r58x-wjg8-63m9 is resolved across your whole dependency graph.

How do I detect GHSA-r58x-wjg8-63m9 in my Maven dependencies?

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

How do I mitigate GHSA-r58x-wjg8-63m9 if there is no patch (or I can't update yet)?

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.

Is GHSA-r58x-wjg8-63m9 actively exploited in the wild?

No public exploit code has been indexed for GHSA-r58x-wjg8-63m9 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for GHSA-r58x-wjg8-63m9?

GHSA-r58x-wjg8-63m9 has an EPSS (Exploit Prediction Scoring System) score of 2.9%, placing it in the 86th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

When was GHSA-r58x-wjg8-63m9 published, and has it been updated?

GHSA-r58x-wjg8-63m9 was published on January 8, 2022 and was last updated on September 10, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

Denial of Service in Apache James

EPSS Exploitation Probability

via FIRST.org ↗

2.9%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs86th percentile — riskier than 86% of all scored CVEsHighest risk

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

Real-World Exposure

1 pkg affected

☕org.apache.james:james-server

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

In Apache James, using Jazzer fuzzer, we identified that an IMAP user can craft IMAP LIST commands to orchestrate a Denial Of Service using a vulnerable Regular expression. This affected Apache James prior to 3.6.1 We recommend upgrading to Apache James 3.6.1 or higher , which enforce the use of RE2J regular expression engine to execute regex in linear time without back-tracking.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.apache.james:james-server`	≥ 3.1.0&&< 3.6.1	3.6.1`org.apache.james:james-server:3.6.1`

Affected Products

1 product · 1 configurations

Application

jamesapache

< 3.6.1

range

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.james:james-server, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.apache.james:james-server to 3.6.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-r58x-wjg8-63m9 is resolved across your whole dependency graph.
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

In Apache James, using Jazzer fuzzer, we identified that an IMAP user can craft IMAP LIST commands to orchestrate a Denial Of Service using a vulnerable Regular expression. This affected Apache James prior to 3.6.1 We recommend upgrading to Apache James 3.6.1 or higher , which enforce the use of RE2J regular expression engine to execute regex in linear time without back-tracking.

O3 Security · Impact-Aware SCA

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Denial of Service in Apache JamesGHSA-r58x-wjg8-63m9