Bug 2520368 (CVE-2026-49825)
| Summary: | CVE-2026-49825 lxml: lxml-html-clean: lxml: URL bypass vulnerability in Cleaner via missing xlink:href | ||
|---|---|---|---|
| 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, alinfoot, amctagga, anthomas, aoconnor, aos-team-art-private, aprice, aruklets, asdas, bniver, cahl, dfreiber, doconnor, dpaolell, dranck, drow, dschmidt, dtrifiro, ebourniv, eglynn, ehelms, flucifre, ggainey, gmeno, groman, hasun, jburrell, jdelft, jjoyce, jlanda, jmitchel, jpasqual, jpretori, jsamir, jschluet, jupierce, juwatts, kaycoth, kshier, lbrazdil, lgarciaa, lhh, ljawale, mbenjamin, mbiarnes, mburns, mdellweg, mgarciac, mhackett, mhulan, mminar, msilmser, nmoumoul, nyancey, oezr, osousa, pakotvan, pcreech, ppalepu, ppostler, prdhamdh, ptisnovs, rbiba, rbryant, rchan, rhel-process-autobot, rjohnson, sbunciak, sghai, sidsharm, simaishi, smallamp, sostapov, sskracic, stcannon, sthirugn, suppawar, teagle, tmalecek, tpfromme, vereddy, vkumar, vlaad, watson-tool-maintainers, weaton, yguenane |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
A flaw was found in lxml, a library for processing XML and HTML in Python. The `lxml.html.defs.link_attrs` were missing `xlink:href`, which could allow an attacker to bypass URL filtering mechanisms. This vulnerability enables URL bypass attacks in embedded content such as Scalable Vector Graphics (SVG) or Mathematical Markup Language (MathML), potentially leading to information disclosure or arbitrary code execution in the context of the user's browser.
|
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: | |||
|
Description
OSIDB Bzimport
2026-08-20 15:05:11 UTC
|