CVE detail
CVE-2026-5084
WebDyne::Session versions through 2.075 for Perl generates the session id insecurely. The session handler generates the session id from an MD5 hash seeded with a call to the built-in rand() function. The rand function is passed a maximum value based on the process id, the epoch time and the reference address of the object, but this information will have no effect on the overall quality of the seed of the message digest. The rand function is seeded by 32-bits and is predictable. It is considered unsuitable for cryptographic purposes. Predictable session ids could allow an attacker to gain access to systems. Note that WebDyne::Session versions 1.042 and earlier appear to be in separate distributions from WebDyne.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 16.1 · diversity 20.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
4 source links · newest first
- http://www.openwall.com/lists/oss-security/2026/05/11/3www.openwall.com
No excerpt available.
Exploitwww.openwall.comMay 11, 2026, 8:16 AM - https://webdyne.orgwebdyne.org
No excerpt available.
referencewebdyne.orgMay 11, 2026, 8:16 AM - https://security.metacpan.org/docs/guides/random-data-for-security.htmlsecurity.metacpan.org
No excerpt available.
Patchsecurity.metacpan.orgMay 11, 2026, 8:16 AM No excerpt available.
Release Notesmetacpan.orgMay 11, 2026, 8:16 AM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
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