Bug 2507839 (CVE-2026-53666)
| Summary: | CVE-2026-53666 react-router: React Router: Information disclosure via client-side constructor execution | ||
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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: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | aazores, abarbaro, abokovoy, abrianik, alizardo, amctagga, anjoseph, anpicker, anthomas, anujha, aoconnor, aruklets, aschwart, asoldano, aszczucz, ataylor, bbaranow, bmaxwell, bniver, boliveir, brasmith, bstansbe, cdrage, cmah, cmyers, cochase, dbosanac, dbruscin, dkeler, dlofthou, dnakabaa, doconnor, dranck, drichtar, dschmidt, dymurray, eaguilar, ebaron, eborisov, ehelms, ehugonne, ewittman, flucifre, fmariani, frenaud, ftrivino, ggainey, ggrzybek, gmalinko, gmeno, gotiwari, gparvin, groman, hasun, ibolton, istudens, ivassile, iweiss, janstey, jchui, jfula, jhe, jhorak, jlanda, jmatsuok, jmatthew, jmontleo, jowilson, jpasqual, jprabhak, jraez, jreimann, jtolenti, juwatts, jwon, kaycoth, kbempah, kshier, ktsao, kvanderr, lball, lchilton, lcouzens, mbenjamin, mcarlett, mdellweg, mdessi, mhackett, mhulan, mosmerov, mposolda, mrizzi, msvehla, mvyas, mwringe, nboldt, ngough, nipatil, nmoumoul, nwallace, nyancey, oaljalju, ometelka, osousa, pantinor, parichar, pberan, pcattana, pcreech, pesilva, pgaikwad, pjindal, pmackay, prwatson, psrna, ptisnovs, rchan, rhaigner, rhel-process-autobot, rjohnson, rkubis, rmartinc, rstancel, rstepani, rushinde, sdawley, sfeifer, simaishi, slucidi, smallamp, solenoci, sostapov, sseago, ssilvert, stcannon, sthorger, suppawar, syedriko, tasato, tcunning, teagle, thason, thjenkin, tmalecek, vdosoudi, vereddy, veshanka, vmuzikar, 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 React Router. If an application is configured to allow attacker-supplied input to modify errors during server-side rendering (SSR), a remote attacker could trigger unexpected code execution on the client. This execution could lead to an outbound network request, potentially resulting in limited information disclosure or unintended network activity. This vulnerability specifically affects applications utilizing Framework Mode and Data Mode with manual SSR/hydration.
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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: | 2507854, 2507858, 2507860, 2507855, 2507856, 2507857, 2507859, 2507861 | ||
| Bug Blocks: | |||
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Description
OSIDB Bzimport
2026-07-27 22:01:51 UTC
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