Apache Cocoon vulnerable to Incorrect Usage of Seeds in Pseudo-Random Number Generator
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.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.apache.cocoon:cocoon-forms-impl | <= 2.3.0 | no fix |
| Java / Kotlin (Maven) | org.apache.cocoon:cocoon-sitemap-impl | <= 2.3.0 | no fix |
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-24783
- https://github.com/apache/cocoon
- https://github.com/apache/cocoon/blob/32a4e41183ba74351d85060011151b2d58acfc52/blocks/cocoon-forms/cocoon-forms-impl/src/main/java/org/apache/cocoon/forms/formmodel/CaptchaField.java#L70
- https://github.com/apache/cocoon/blob/32a4e41183ba74351d85060011151b2d58acfc52/core/cocoon-sitemap/cocoon-sitemap-impl/src/main/java/org/apache/cocoon/components/flow/ContinuationsManagerImpl.java#L112
- https://lists.apache.org/thread/pk86jp5cvn41432op8wv1k8p14mp27nz
- http://www.openwall.com/lists/oss-security/2025/01/27/3
- CVSS vector
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- Weakness (CWE)
CWE-335- Platform
- Java / Kotlin (Maven)
- Package
org.apache.cocoon:cocoon-forms-impl, org.apache.cocoon:cocoon-sitemap-impl- Disclosed
- 27.01.2025
- Updated
- 11.10.2026 12:21
Sources and licenses
OSV / GitHub Advisory Database - GHSA-pff9-53m5-qr56 - CC BY 4.0
Vulnerability history: org.apache.cocoon:cocoon-sitemap-impl
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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