Vulnerability · CVE-2026-28891
A race condition was addressed with additional validation.
Published Mar 25, 2026 · catalog updated Jun 17, 2026 · A race condition was
Check if you run it
No confirmed exploitation is on record for CVE-2026-28891. EPSS is 0.13%. Act only if a listed version of A race condition was is installed.
Gaps on this record
- The stored product name is a package slug. The name on this page is taken from the title (A race condition was).
- No version range is stored. A customer cannot check an installed version against this record.
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- High8.1
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.13%
- Remediation
- Not established
- Affected products
- cpe apple/macos
A race condition was addressed with additional validation. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. An app may be able to break out of its sandbox.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- cpe apple/macosversion unspecified
How to fix CVE-2026-28891
Recommended remediation
No required-action text, fix commit, or clear fixed-version range is stored yet.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-28891. EPSS is 0.13%. Act only if a listed version of A race condition was is installed.
Which versions are affected?
Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-362: Race Condition. EPSS 0.13%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Mar 25, 2026 · NIST NVD
Detected
A race condition was addressed with additional validation. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. An app may be able to break out of its sandbox.
Jun 17, 2026 · NIST NVD
Updated
A race condition was addressed with additional validation. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. An app may be able to break out of its sandbox.
Sources
- CVE.orgVulnerability recordCVE-2026-28891
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-28891
30-day exploitation probability 0.1%
first.org - NIST NVDVulnerability recordCVE-2026-28891
A race condition was addressed with additional validation. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. An app may be able to break out of its sandbox.
nvd.nist.gov
References
Freshness
Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.