CVE-2026-48026

HighCVSS 8.7

Published: 07/08/2026(UTC)Updated: 12/08/2026(UTC)Translated: 08/08/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.22%

12th percentile - higher than 12% of all known CVEs

Summary

lakeFS, an open-source tool for object storage management, prior to version 1.81.1 (open source) and 1.84.0 (enterprise) renders Markdown files from repository objects without sanitizing the resulting HTML. A user with write access can commit a .md object containing arbitrary HTML/JavaScript, which executes in another user's session.

Risk Assessment

An attacker can steal session data or perform actions on behalf of the victim, potentially leading to data confidentiality and integrity breaches.

Recommendation

Upgrade to version 1.81.1 (OSS) or 1.84.0 (Enterprise). For older Enterprise versions, temporarily disable Markdown rendering by adding YAML to the config.

Other vulnerabilities in lakeFS

CVE-2026-66006Medium
Vulnerability in lakeFS up to version 1.83.0 allows authentication bypass in the /setup_comm_prefs endpoint. Unauthenticated attackers can overwrite operator metadata including email, name, and company, and modify security update preferences.

Original NVD description (English source)

lakeFS is an open-source tool that transforms object storage into a Git-like repositories. Prior to version 1.81.1 of the open source edition and 1.84.0 of the enterprise edition, lakeFS Web UI renders markdown files from repository objects without sanitizing the resulting HTML. A user with write access to any repository branch can commit a `.md` object containing arbitrary HTML/JavaScript. Any other user who opens that object, or who navigates to a repository or directory containing a malicious `README.md`, executes the attacker-supplied script in their own authenticated session. lakeFS fixes the issue in v1.81.1 and lakeFS Enterprise fixes the issue in in v1.84.0. Enterprise customers using older versions can temporarily disable Markdown rendering by adding YAML to their config. No workaround exists for OSS release. Users are advised to upgrade to the latest version for both lakeFS and lakeFS-Enterprise.