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CVE-2026-55086

4.2 Moyenne

Publiée le 19/08/2026 à 22:17 · Modifiée le 09/09/2026 à 23:15 · Analyse NVD reportée · Source : security-advisories@github.com

Description

Etherpad is a real-time collaborative editor. Prior to 3.1.0, src/node/handler/ImportHandler.ts and src/node/handler/ExportHandler.ts derive temporary filenames from Math.random() and place them in os.tmpdir(). On a host with a shared world-writable temporary directory, a local unprivileged attacker who predicts a filename can precreate a symbolic link to a file writable by the Etherpad process. Subsequent import or export operations can follow the link through fs.writeFile, fs.rename, or document-conversion output and overwrite the target with partially attacker-controlled content. This issue is fixed in version 3.1.0.

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Produits concernés

Scores CVSS

VersionScoreSourceVecteur
3.1 4.2 Moyenne security-advisories@github.com CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N

Faiblesses (CWE)

Références

Ailleurs