CVE-2026-101056GHSA-VX2M-JPXR-XV7WGO-2026-6287
Cloudreve before 4.16.1 Authentication Bypass via Cached Context Hint
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 4.16.1
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: poc
- Automatable: yes
- Technical impact: partial
Summary
Cloudreve before 4.16.1 fails to revalidate share access when restoring cached navigator state from a context_hint UUID. Attackers who previously had valid share access can replay the cached hint to generate signed file URLs for up to 300 seconds after the share is deleted, expires, or reaches zero remaining downloads.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: poc · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- cloudreve cloudreve
fixed in 4.16.1
- github.com/cloudreve/Cloudreve/v4Go
through 4.0.0-20260606032813-26b6b1044b02
- github.com/cloudreve/CloudreveGo
All versions
- github.com/cloudreve/Cloudreve/v3Go
All versions
- github.com/cloudreve/Cloudreve/v4Go
All versions