What is the CVSS score of CVE-2026-30958?

CVE-2026-30958 has a CVSS 3.1 base score of 7.2 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.1%.

Which versions of Oneuptime are affected by CVE-2026-30958?

OneUptime instances prior to version 10.0.21 contain an unauthenticated path traversal vulnerability that allows attackers to read arbitrary files from affected servers without credentials.

Is there a public PoC exploit available for CVE-2026-30958?

Yes, a public proof-of-concept exploit is available for CVE-2026-30958. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2026-30958?

Within 24 hours: Immediately assess OneUptime deployment versions and document all instances running versions prior to 10.0.21. Within 7 days: Implement WAF rules to block malicious requests to /workflow/docs/ endpoint with path traversal patterns (../, encoded variants); restrict network access to OneUptime administrative interfaces; isolate OneUptime servers from untrusted networks. Within 30 days: Upgrade all OneUptime instances to version 10.0.21 or later once available; conduct file access audit to determine if unauthorized file reads occurred; rotate all credentials and secrets potentially exposed on affected servers.

Oneuptime CVE-2026-30958

HIGH

Path Traversal (CWE-22)

2026-03-10 security-advisories@github.com

Path Traversal Oneuptime

7.2

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

7.2 HIGH

AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

PoC Detected

Mar 12, 2026 - 14:09 vuln.today

Public exploit code

CVE Published

Mar 10, 2026 - 18:18 nvd

HIGH 7.2

DescriptionGitHub Advisory

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.

AnalysisAI

Unauthenticated path traversal in OneUptime versions before 10.0.21 allows remote attackers to read arbitrary files from the server via the /workflow/docs/:componentName endpoint, which fails to sanitize user input before passing it to file operations. Public exploit code exists for this vulnerability, affecting all users of vulnerable versions without authentication requirements. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access

Send GET request to /workflow/docs endpoint

Exploit

Inject path traversal sequences in componentName parameter

Execution

res.sendFile() concatenates unsanitized input

Impact

Read arbitrary server files

Access

Send GET request to /workflow/docs endpoint

Exploit

Inject path traversal sequences in componentName parameter

Execution

res.sendFile() concatenates unsanitized input

Impact

Read arbitrary server files

Vulnerability AssessmentAI

Exploitation	OneUptime versions prior to 10.0.21 with /workflow/docs/:componentName endpoint exposed. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	CVSS 7.2 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	An attacker without authentication could exploit this vulnerability to compromise the affected system.
Remediation	Fixed in version 10.0.21.. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Immediately assess OneUptime deployment versions and document all instances running versions prior to 10.0.21. …

Threat intelligence, references, and detailed analysis are available after sign-in.

CVE-2026-30958 vulnerability details – vuln.today

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Oneuptime CVE-2026-30958

Severity by source

CVSS VectorGitHub Advisory

Lifecycle Timeline

DescriptionGitHub Advisory

AnalysisAI

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Attack ChainAIDerived

Vulnerability AssessmentAI

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External POC / Exploit Code