Apache Cocoon vulnerable to Incorrect Usage of Seeds in Pseudo-Random Number Generator

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS 4.0

2.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U · score source

EPSS

• CVE-2025-24783: 0.85% estimated exploitation activity in the next 30 days; percentile 58.08 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG) vulnerability in Apache Cocoon. This issue affects Apache Cocoon: all versions. When a continuation is created, it gets a random identifier. Because the random number generator used to generate these identifiers was seeded with the startup time, it may not have been sufficiently unpredictable, and an attacker could use this to guess continuation ids and look up continuations they should not have had access to. As a mitigation, you may enable the "session-bound-continuations" option to make sure continuations are not shared across sessions. As this project is retired, we do not plan to release a version that fixes this issue. Users are recommended to find an alternative or restrict access to the instance to trusted users. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

Published by the source

27 Jan 2025, 15:30 UTC

Last modified by the source

27 Jan 2025, 21:34 UTC

Source last checked

26 Oct 2026, 16:34 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-pff9-53m5-qr56

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# Patch Next advisory brief: CVE-2025-24783

Advisory: Apache Cocoon vulnerable to Incorrect Usage of Seeds in Pseudo-Random Number Generator
IDs: CVE-2025-24783, GHSA-pff9-53m5-qr56
Record: https://patchnext.com/advisories/cve-2025-24783 (revision 1, source checked 26 Oct 2026, 16:34 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Low (CVSS 2.7)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor response not established. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven org.apache.cocoon:cocoon-sitemap-impl: affected <= 2.3.0
- Maven org.apache.cocoon:cocoon-forms-impl: affected <= 2.3.0

## Suggested inspection (read-only)
- Maven org.apache.cocoon:cocoon-sitemap-impl: check the installed version with your package manager.
- Maven org.apache.cocoon:cocoon-forms-impl: check the installed version with your package manager.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on org.apache.cocoon:cocoon-sitemap-impl, org.apache.cocoon:cocoon-forms-impl.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-pff9-53m5-qr56 (GitHub-reviewed advisory GHSA-pff9-53m5-qr56 lists affected ranges: Maven org.apache.cocoon:cocoon-forms-impl >=0 =0 <=2.3.0)

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