Bug 2506436 (CVE-2026-65898)
| Summary: | CVE-2026-65898 dompurify: DOMPurify: Cross-site scripting via permanent attribute allowlist pollution | ||
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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: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | abarbaro, akhatavk, akostadi, alizardo, amasferr, amctagga, anjoseph, anpicker, aoconnor, aos-team-art-private, asdas, ataylor, bniver, bparees, cdrage, dbruscin, dkeler, dmayorov, dpaolell, dschmidt, ehugonne, ewittman, flucifre, fmariani, gmalinko, gmeno, gparvin, groman, hasun, janstey, jchui, jdelft, jfula, jhe, jlanda, jlledo, jowilson, jprabhak, jupierce, jwong, jwon, kaycoth, kbempah, kshier, ktsao, kvanderr, lchilton, lgarciaa, mbenjamin, mbiarnes, mcarlett, mhackett, nboldt, nipatil, nyancey, oaljalju, omaciel, ometelka, pantinor, pjindal, ppalepu, ppostler, prdhamdh, psrna, ptisnovs, rhaigner, rhel-process-autobot, rkubis, rstepani, rushinde, sdawley, sfeifer, sghai, sidsharm, simaishi, solenoci, sostapov, stcannon, suppawar, syedriko, tcunning, teagle, thason, tsedmik, ttakamiy, vereddy, vlaad, watson-tool-maintainers, wtam, xdharmai, yfang, yguenane |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
A flaw was found in DOMPurify. When the `setConfig()` function is used with an `uponSanitizeAttribute` hook, the `ALLOWED_ATTR` allowlist is not properly cloned. This allows an attacker to register a hook that can permanently modify the shared allowlist, enabling the conditional allowance of dangerous attributes. Consequently, an attacker can submit untrusted content that inherits the polluted allowlist, leading to stored Cross-site Scripting (XSS) and the execution of event handlers.
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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: | 2520553, 2520562, 2520564, 2520565, 2520568, 2520569, 2520552, 2520554, 2520555, 2520556, 2520566, 2520567, 2520570, 2520571 | ||
| Bug Blocks: | |||
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Description
OSIDB Bzimport
2026-07-23 14:01:59 UTC
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