Memory leak in Scribunto causes runJobs.php to run out of memory
Priority LOW 12CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Attack requirements
- None
- Impact type
- Cross-site scripting, Denial of service
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79 and CWE-401.
Summary
Vulnerability in Wikimedia Foundation Scribunto. This issue affects Scribunto: from 1.45.0 before 1.45.2.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00347 28th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Scribunto (Wikimedia Foundation): 1.45.2
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Wikimedia Foundation | Scribunto | 1.45.0 to before 1.45.2 | 1.45.2 | Patch available | CNA |
- Scribunto VendorWikimedia Foundation Affected 1.45.0 to before 1.45.2 Fixed in 1.45.2 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:wikimedia:scribunto:*:*:*:*:*:mediawiki:*:* | 1.45.0 to before 1.45.2 | Vulnerable | Wikimedia Foundation |
- cpe:2.3:a:wikimedia:scribunto:*:*:*:*:*:mediawiki:*:* Versions 1.45.0 to before 1.45.2 Vulnerable ·Wikimedia Foundation
Remediation
- Fix · CNA Scribunto (Wikimedia Foundation) Fixed in 1.45.2
Timeline
- 2026-10-02 Threatist record created from CVE-2026-34089
- 2026-10-03 Alias added: GHSA-mcf6-vhp9-g7jr
References
Sources
- CVE-2026-34089 · CVE Program
- CVE-2026-34089 · NVD
- FIRST EPSS
- GHSA-mcf6-vhp9-g7jr · GitHub Advisory Database · CC BY 4.0
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