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Rocky Linux Firefox Key Memory Safety and Sandbox Escape RLSA-2026-27734

rocky
Calendar Grey June 24, 2026
Rockylinux Esm H88
Explore the important security update for Rocky Linux Firefox with critical fixes addressing multiple vulnerabilities.
Important: firefox security update

Summary

An update is available for firefox. This update affects Rocky Linux 9. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list


Topics%20covered

Topics Covered

security advisory important firefox information disclosure sandbox escape rockylinux

RPMs

firefox-0:140.12.0-1.el9_8.aarch64.rpm

firefox-0:140.12.0-1.el9_8.ppc64le.rpm

firefox-0:140.12.0-1.el9_8.s390x.rpm

firefox-0:140.12.0-1.el9_8.src.rpm

firefox-0:140.12.0-1.el9_8.x86_64.rpm

firefox-debuginfo-0:140.12.0-1.el9_8.aarch64.rpm

firefox-debuginfo-0:140.12.0-1.el9_8.ppc64le.rpm

firefox-debuginfo-0:140.12.0-1.el9_8.s390x.rpm

firefox-debuginfo-0:140.12.0-1.el9_8.x86_64.rpm

firefox-debugsource-0:140.12.0-1.el9_8.aarch64.rpm

firefox-debugsource-0:140.12.0-1.el9_8.ppc64le.rpm

firefox-debugsource-0:140.12.0-1.el9_8.s390x.rpm

firefox-debugsource-0:140.12.0-1.el9_8.x86_64.rpm

firefox-x11-0:140.12.0-1.el9_8.aarch64.rpm

firefox-x11-0:140.12.0-1.el9_8.ppc64le.rpm

firefox-x11-0:140.12.0-1.el9_8.s390x.rpm

firefox-x11-0:140.12.0-1.el9_8.x86_64.rpm

References

No references

CVES

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-12289

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-12290

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-12291

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-12292

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-12294

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-12295

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-12296

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-12297

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-12298

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-12299

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-12302

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-12304

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-12305

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-12306

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-12307

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-12308

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-12309

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-12310

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-12311

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-12312

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-12313

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-12314

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-12315

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-12324

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-12325

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-12327

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-12328

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-12329

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-12330

Severity
important

Name: RLSA-2026:27734
Affected Products: Rocky Linux 9

Fixes

https://bugzilla.redhat.com/show_bug.cgi?id=2489207

https://bugzilla.redhat.com/show_bug.cgi?id=2489208

https://bugzilla.redhat.com/show_bug.cgi?id=2489209

https://bugzilla.redhat.com/show_bug.cgi?id=2489210

https://bugzilla.redhat.com/show_bug.cgi?id=2489211

https://bugzilla.redhat.com/show_bug.cgi?id=2489212

https://bugzilla.redhat.com/show_bug.cgi?id=2489214

https://bugzilla.redhat.com/show_bug.cgi?id=2489215

https://bugzilla.redhat.com/show_bug.cgi?id=2489217

https://bugzilla.redhat.com/show_bug.cgi?id=2489218

https://bugzilla.redhat.com/show_bug.cgi?id=2489220

https://bugzilla.redhat.com/show_bug.cgi?id=2489221

https://bugzilla.redhat.com/show_bug.cgi?id=2489223

https://bugzilla.redhat.com/show_bug.cgi?id=2489224

https://bugzilla.redhat.com/show_bug.cgi?id=2489225

https://bugzilla.redhat.com/show_bug.cgi?id=2489226

https://bugzilla.redhat.com/show_bug.cgi?id=2489229

https://bugzilla.redhat.com/show_bug.cgi?id=2489231

https://bugzilla.redhat.com/show_bug.cgi?id=2489232

https://bugzilla.redhat.com/show_bug.cgi?id=2489233

https://bugzilla.redhat.com/show_bug.cgi?id=2489234

https://bugzilla.redhat.com/show_bug.cgi?id=2489235

https://bugzilla.redhat.com/show_bug.cgi?id=2489236

https://bugzilla.redhat.com/show_bug.cgi?id=2489237

https://bugzilla.redhat.com/show_bug.cgi?id=2489239

https://bugzilla.redhat.com/show_bug.cgi?id=2489240

https://bugzilla.redhat.com/show_bug.cgi?id=2489243

https://bugzilla.redhat.com/show_bug.cgi?id=2489244

https://bugzilla.redhat.com/show_bug.cgi?id=2489248


Topics%20covered

Topics Covered

security advisory important firefox information disclosure sandbox escape rockylinux

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