CVE-2026-30958
HighPublic exploitOneUptime: Path Traversal — Arbitrary File Read (No Auth)
Published Mar 10, 2026 · Updated Oct 9, 2026 · Also known as GHSA-p2wh-9pw8-hvff
Key Facts
Patch immediately- CVE-2026-30958 is a high-severity vulnerability (CVSS 8.6 v3.1) affecting Oneuptime (Hackerbay).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 1.1% probability of exploitation in the next 30 days.
- Fixed versions are available, including Oneuptime 10.0.21.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
CVSS v3.1
8.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
EPSS (30-day exploit likelihood)
1.1%
Higher than 66.0% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
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Description
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.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| OneuptimeHackerbay | >= < 10.0.21 | 10.0.21 |
Patched Releases
Oneuptime
10.0.21
Timeline
Publicly disclosed
Mar 10, 2026
Last updated
Oct 9, 2026
Weakness Type
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
References
FAQ
Common Questions.
OneUptime is a solution for monitoring and managing online services.
Affected: Oneuptime (Hackerbay) versions >= < 10.0.21. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Oneuptime 10.0.21.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
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