Bug 2458634 (CVE-2026-5588)
| Summary: | CVE-2026-5588 bouncycastle: BC-JAVA: PKIX draft CompositeVerifier accepts empty signature sequence as valid | ||
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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: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | unspecified | CC: | aazores, anthomas, ant, anujha, aschwart, asoldano, aszczucz, ataylor, avibelli, bbaranow, bgeorges, bmaxwell, boliveir, bstansbe, ccranfor, cescoffi, chfoley, cmah, dandread, dbruscin, dhanak, dkreling, dlofthou, drichtar, drosa, eaguilar, ebaron, ehelms, ehugonne, ewittman, fmariani, fmongiar, ggainey, gmalinko, gsmet, gtanzill, ibek, istudens, ivassile, iweiss, janstey, jbuscemi, jkoehler, jmartisk, jnethert, jolong, jpasqual, jpechane, jrokos, juwatts, jwon, kvanderr, lphiri, lthon, manderse, mcarlett, mhulan, mnovotny, mosmerov, mposolda, msvehla, nipatil, nmoumoul, nwallace, olubyans, osousa, pantinor, pberan, pcreech, pdelbell, pesilva, pgallagh, pjindal, pmackay, probinso, rchan, rgodfrey, rguimara, rhel-process-autobot, rkubis, rmartinc, rruss, rstancel, rstepani, rsvoboda, sausingh, sbiarozk, sdawley, smaestri, smallamp, ssilvert, sthorger, swoodman, tcunning, thjenkin, tmalecek, tqvarnst, vdosoudi, vmuzikar, watson-tool-maintainers, yfang |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
A flaw was found in Legion of the Bouncy Castle Inc. BC-JAVA bcpkix. The PKIX draft `CompositeVerifier` implementation improperly accepts an empty signature sequence as a valid cryptographic signature. This issue allows a remote attacker to bypass signature verification mechanisms, potentially compromising the authenticity and integrity 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: | |||
| Bug Depends On: | 2463529, 2463531, 2463532, 2463533, 2463527, 2463528, 2463530, 2463534 | ||
| Bug Blocks: | |||
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Description
OSIDB Bzimport
2026-04-15 10:01:24 UTC
This issue has been addressed in the following products: Red Hat Build of Apache Camel 4.14 for Quarkus 3.27 Via RHSA-2026:13631 https://access.redhat.com/errata/RHSA-2026:13631 This issue has been addressed in the following products: Red Hat AMQ Broker 7.13.5 Via RHSA-2026:14272 https://access.redhat.com/errata/RHSA-2026:14272 This issue has been addressed in the following products: Red Hat AMQ Broker 7.12.7 Via RHSA-2026:14276 https://access.redhat.com/errata/RHSA-2026:14276 This issue has been addressed in the following products: Red Hat build of Apache Camel 4.18.1 for Spring Boot 3.5.14 Via RHSA-2026:17668 https://access.redhat.com/errata/RHSA-2026:17668 This issue has been addressed in the following products: Red Hat JBoss Enterprise Application Platform 8.1 Via RHSA-2026:18059 https://access.redhat.com/errata/RHSA-2026:18059 This issue has been addressed in the following products: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 Via RHSA-2026:18055 https://access.redhat.com/errata/RHSA-2026:18055 This issue has been addressed in the following products: Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 Via RHSA-2026:18054 https://access.redhat.com/errata/RHSA-2026:18054 |