Bug 2461639 (CVE-2026-41907)

Summary: CVE-2026-41907 uuid: uuid: Out-of-bounds write vulnerability impacts data integrity and confidentiality
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: aadhikar, aazores, abarbaro, abrianik, abuckta, adudiak, alcohan, alizardo, amctagga, anjoseph, anpicker, anthomas, aoconnor, asoldano, bbaranow, bbrownin, bdettelb, bmaxwell, bniver, bparees, brasmith, bsmejkal, bstansbe, caswilli, cdrage, chfoley, cmah, cmyers, cochase, dhanak, dkuc, dlofthou, dnakabaa, doconnor, dranck, drosa, dschmidt, dsimansk, dymurray, eaguilar, ebaron, ehelms, erezende, ewittman, fdeutsch, flucifre, ggainey, ggrzybek, gmalinko, gmeno, gotiwari, gparvin, groman, hasun, ibek, ibolton, istudens, ivassile, iweiss, jachapma, janstey, jbalunas, jchui, jfula, jgrulich, jhe, jhorak, jkoehler, jlanda, jmatthew, jmontleo, jolong, jowilson, jprabhak, jraez, jrokos, juwatts, jwong, kaycoth, kingland, kshier, ktsao, kverlaen, lchilton, lcouzens, lphiri, manissin, mbarnett, mbenjamin, mhackett, mhulan, mnovotny, mosmerov, mreynolds, mstipich, msvehla, mvyas, nboldt, nipatil, nmoumoul, nwallace, nyancey, oaljalju, omaciel, ometelka, orabin, oramraz, osousa, pahickey, pantinor, parichar, pberan, pcreech, pdelbell, pesilva, pgaikwad, pjindal, pmackay, progier, psrna, ptisnovs, rchan, rexwhite, rgodfrey, rhaigner, rhel-process-autobot, rjohnson, rkubis, rstancel, rstepani, rushinde, sausingh, sdawley, sdoran, sfeifer, simaishi, slucidi, smaestri, smallamp, smcdonal, smullick, snegrini, sostapov, spichugi, sseago, stcannon, sthirugn, stirabos, swoodman, syedriko, tasato, tbordaz, teagle, thason, thjenkin, tmalecek, tpopela, ttakamiy, vashirov, vdosoudi, vereddy, watson-tool-maintainers, wtam, xdharmai, yguenane
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Doc Text:
A flaw was found in uuid. The library's versions v3, v5, and v6 do not adequately check the size of external memory buffers provided by applications. This oversight allows the library to write data beyond the designated buffer limits without signaling an error. Such out-of-bounds writes can lead to data corruption, unintended information disclosure, or disrupt application availability.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-04-24 19:03:06 UTC
uuid is for the creation of RFC9562 (formerly RFC4122) UUIDs. Prior to 14.0.0, v3, v5, and v6 accept external output buffers but do not reject out-of-range writes (small buf or large offset). This allows silent partial writes into caller-provided buffers. This vulnerability is fixed in 14.0.0.