OneUptime: Path Traversal — Arbitrary File Read (No Auth)

published 2026-03-10 8 mo ago modified 2026-10-07 33 d ago also EUVD-2026-10563

cvss: 7.2; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.2%; EPSS 1.2% chance of exploitation in 30 days, percentile 69%
public exploits: 0; none known, plus a Nuclei check

OneUptime is a solution for monitoring and managing online services. Prior to 10.0.21, an unauthenticated path traversal in the /workflow/docs/:componentName endpoint allows reading arbitrary files from the server filesystem. The componentName route parameter is concatenated directly into a file path passed to res.sendFile() in orker/FeatureSet/Workflow/Index.ts with no sanitization or authentication middleware. This vulnerability is fixed in 10.0.21.

Patch / fix

fixed in 1 links 1

hackerbay oneuptime 10.0.21

github.com/OneUptime/oneuptime/releases/tag/10.0.21 release

CISA SSVC

Exploitation: Proof of concept is public
Automatable: yes
Technical impact: partial
Assessed: 8 mo ago (2026-03-10)

Exploit prediction

1.24% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

Nuclei template OneUptime < 10.0.21 - Path Traversal nuclei detection template
github.com https://github.com/OneUptime/oneuptime/security/advisories/GHSA-p2wh-9pw8-hvff referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.2	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
NVD	3.1	8.6	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Affected products

OneUptime oneuptime

Classification

Weakness

CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

github.com /OneUptime/oneuptime/security/advisories/GHSA-p2wh-9pw8-hvff
exploit, mitigation, vendor-advisory
github.com /OneUptime/oneuptime/releases/tag/10.0.21
product, release-notes

Sources

CVE List CVE-2026-30958
NVD CVE-2026-30958

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary