Bug 2498142 (CVE-2026-59923)
| Summary: | CVE-2026-59923 mistune: Mistune: Arbitrary code execution through crafted Markdown links | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security <prodsec-ir-bot> |
| Status: | NEW --- | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | akhatavk, anthomas, aos-team-art-private, asdas, dpaolell, ehelms, ggainey, jdelft, jpasqual, jupierce, juwatts, lgarciaa, mbiarnes, mdellweg, mhulan, nmoumoul, osousa, pcreech, ppalepu, ppostler, prdhamdh, rchan, rjohnson, sghai, sidsharm, smallamp, suppawar, tmalecek, 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, a Python Markdown parser. This vulnerability allows an attacker to bypass URL protections by using specially crafted Markdown links or images containing percent-encoded javascript URIs. This can lead to the execution of arbitrary scripts in the rendered HTML, potentially compromising the user's system.
|
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: | 2498461, 2498464, 2498469 | ||
| Bug Blocks: | |||
|
Description
OSIDB Bzimport
2026-07-08 17:01:42 UTC
|