Bug 2450066 (CVE-2026-4539)
| Summary: | CVE-2026-4539 pygments: Pygments: Denial of Service via inefficient regular expression processing in AdlLexer | ||
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| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security DevOps Team <prodsec-dev> |
| Status: | NEW --- | QA Contact: | |
| Severity: | low | Docs Contact: | |
| Priority: | low | ||
| Version: | unspecified | CC: | abarbaro, adudiak, alinfoot, alizardo, anpicker, anthomas, aprice, bbrownin, bparees, caswilli, dfreiber, drow, dschmidt, dtrifiro, ebourniv, ehelms, erezende, ggainey, hasun, jburrell, jchui, jdobes, jfula, jhe, jkoehler, jlanda, jowilson, jsamir, juwatts, jwong, kaycoth, kgaikwad, kshier, ktsao, lball, lgallett, ljawale, lphiri, luizcosta, mbarnett, mhayden, mhulan, nboldt, ngough, nmoumoul, nweather, nyancey, oezr, omaciel, ometelka, orabin, osousa, pcreech, psrna, ptisnovs, rbobbitt, rbryant, rchan, sbunciak, sdoran, simaishi, smallamp, smcdonal, stcannon, syedriko, teagle, tmalecek, ttakamiy, veshanka, vkumar, weaton, xdharmai, yguenane |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
A flaw was found in pygments. A local user can exploit this vulnerability by providing specially crafted input to the AdlLexer function, which leads to inefficient regular expression processing. This can result in a Denial of Service (DoS), making the application unresponsive.
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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: | |||
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Description
OSIDB Bzimport
2026-03-22 06:01:42 UTC
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