Bug 2559278 (CVE-2026-115349)
| Summary: | CVE-2026-115349 mistune: mistune: Denial of Service via deeply nested square brackets | ||
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| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security <prodsec-ir-bot> |
| Status: | NEW --- | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | unspecified | CC: | akhatavk, aos-team-art-private, asdas, dpaolell, jdelft, jupierce, lgarciaa, mbiarnes, ppalepu, ppostler, prdhamdh, sghai, sidsharm, suppawar, vlaad |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
A flaw was found in mistune. This flaw allows a remote attacker to cause a Denial of Service (DoS) by submitting crafted Markdown input containing deeply nested square brackets. Processing this input triggers inefficient parsing behavior in the link text parser, exhausting server processor resources and rendering the application unavailable.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 2560125, 2560126, 2560127, 2560128, 2560129, 2560130, 2560131 | ||
| Bug Blocks: | |||
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Description
OSIDB Bzimport
2026-10-22 20:03:15 UTC
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