Bug 2510259 (CVE-2026-12816)
| Summary: | CVE-2026-12816 org.bouncycastle/bcprov-jdk15on: Bouncy Castle for Java: Message Authentication Code (MAC) forgery due to a length-dependent Key Derivation Function (KDF) split | ||
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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: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | unspecified | CC: | anthomas, ant, anujha, aschwart, asoldano, aszczucz, ataylor, bbaranow, bmaxwell, boliveir, bstansbe, cescoffi, csuconic, dbruscin, dfreiber, dlofthou, drichtar, drow, dschmidt, eglynn, ehelms, ehugonne, ewittman, fmariani, fmongiar, gbenhaim, ggainey, gmalinko, gsmet, gtully, istudens, ivassile, iweiss, janstey, jburrell, jjoyce, jlanda, jmartisk, jnethert, jpasqual, jpretori, jschluet, jsherman, juwatts, jwon, kshier, kvanderr, lhh, manderse, mburns, mcarlett, mdellweg, mgarciac, mhulan, mosmerov, mposolda, msvehla, nipatil, niyer, nmoumoul, nwallace, olubyans, osousa, ozzy, pantinor, pberan, pcreech, pdelbell, pesilva, pjindal, pmackay, rchan, rgemmell, rgodfrey, rguimara, rhel-process-autobot, rkubis, rmartinc, rstancel, rstepani, sbiarozk, sdawley, simaishi, smallamp, ssilvert, stcannon, sthorger, tbish, tcunning, thjenkin, tlavocat, tmalecek, twaugh, varjain, vdosoudi, vkumar, vmuzikar, watson-tool-maintainers, 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 Bouncy Castle for Java. This vulnerability allows for Message Authentication Code (MAC) forgery in the IESEngine stream-mode. The issue arises from a length-dependent Key Derivation Function (KDF) split, which an attacker could exploit to bypass integrity checks. This could lead to unauthorized manipulation of data.
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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
2026-08-03 04:01:35 UTC
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