Bug 2362485 (CVE-2025-46653)

Summary: CVE-2025-46653 formidable: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) in Formidable
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: abarbaro, anjoseph, aveerama, cdaley, dhanak, dkuc, dsimansk, erack, fjansen, gotiwari, jchui, jhe, jhorak, jkoehler, jprabhak, kingland, ktsao, kverlaen, lphiri, matzew, mnovotny, mvyas, nboldt, psrna, sausingh, tpopela, wtam
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Doc Text:
A flaw was found in Formidable (node-formidable) related to its pseudo-random number generator (PRNG). The package uses a weak method to generate random filenames for uploaded files, making it possible for attackers to predict filenames under certain conditions. This vulnerability could allow an attacker to guess and access uploaded files, potentially leading to data exposure or malicious file manipulation.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2362627, 2362628, 2362629, 2362632, 2362633, 2362634, 2362637, 2362620, 2362621, 2362622, 2362623, 2362624, 2362625, 2362626, 2362630, 2362631, 2362635, 2362636    
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Description OSIDB Bzimport 2025-04-26 21:01:07 UTC 
Formidable (aka node-formidable) 2.1.0 through 3.x before 3.5.3 relies on hexoid to prevent guessing of filenames for untrusted executable content; however, hexoid is documented as not "cryptographically secure." (Also, there is a scenario in which only the last two characters of a hexoid string need to be guessed, but this is not often relevant.) NOTE: this does not imply that, in a typical use case, attackers will be able to exploit any hexoid behavior to upload and execute their own content.