Skip to main content

CVE detail

CVE-2026-49991

RustFS is a distributed object storage system built in Rust. In 1.0.0-beta.4, authenticated users with only PutObject permission on their own bucket can exploit a path traversal vulnerability in the Snowball auto-extract feature to write arbitrary objects into other users' buckets, completely breaking multi-tenant isolation. The vulnerability chains three flaws: No ../ sanitization in tar entry key normalization; IAM wildcard matching uses raw (uncleaned) paths; and Filesystem path cleaning resolves ../ across bucket boundaries.

CVSS 8.6 · HighBuzz score 11.9

Buzz score

Why this CVE is surfacing

Buzz score total 11.9

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 6.9 · diversity 5.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Mention score
6.9
1 evidence mentions in the snapshot
Diversity score
5.0
1 sources across 1 categories
KEV score
0.0
No KEV entry observed
OTX score
0.0
0 OTX pulses
PoC score
0.0
0 repos · best confidence N/A
Best PoC traction
0
Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions
0
within the 30d window
Peak daily
0
highest bucket

Evidence

Source links by recency

Newest mentions first
1 source links · newest first

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
No public PoC repositories have been matched yet.

Related records

Similar CVEs

6 related CVEs with shared weakness or product evidence
  • CVE-2026-47754

    Metacat is data repository software that helps researchers preserve, share, and discover data. Versions 2.x through 2.19.1 and all 1.x versions contain an unauthenticated path tra…

    CVSS 9.3 · Critical
    4 mentions
  • CVE-2026-47394

    PraisonAI is a multi-agent teams system. Prior to version 4.6.40, the fix for GHSA-9mqq-jqxf-grvw / CVE-2026-44336 is incomplete. The original advisory description named four vuln…

    CVSS 8.7 · High
  • CVE-2025-15066

    Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), Missing Authorization vulnerability in Innorix WP allows Path Traversal.This issue affects Innorix…

    CVSS 6.9 · Medium
    2 mentions
  • CVE-2024-7950

    The WP Job Portal – A Complete Recruitment System for Company or Job Board website plugin for WordPress is vulnerable to Local File Inclusion, Arbitrary Settings Update, and User…

    CVSS 9.8 · Critical
    1 mention
  • CVE-2024-5637

    The Market Exporter plugin for WordPress is vulnerable to unauthorized loss of data due to a missing capability check on the 'remove_files' function in all versions up to, and inc…

    CVSS 7.5 · High
  • CVE-2021-24639

    The OMGF WordPress plugin before 4.5.4 does not enforce path validation, authorisation and CSRF checks in the omgf_ajax_empty_dir AJAX action, which allows any authenticated users…

    CVSS 8.1 · High