A certificate validation issue was addressed with improved certificate validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoi…
cve CVE-2026-86889 1 source, 1 claim · Watch
NVD writes:
A certificate validation issue was addressed with improved certificate validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An attacker in a privileged network position may be able to intercept network traffic. the claim
A certificate validation issue was addressed with improved certificate validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An attacker in a privileged network position may be able to intercept network traffic. the claim
- Severity
- MEDIUM NVD
- CVSS
- 4.8 NVD
- Fixed in
- 15.8, 26.7, 27 NVD
- Vendor
- Apple NVD
- Product
- macOS NVD
- CWE
- CWE-295 NVD
How far exploitation has got
- No public code known
- Proof of concept
- Proof of concept, verified
- A Metasploit module
- Exploited in the wild
- Used in ransomware campaigns
Timeline
| 2026-09-14 | first spoke of it: A certificate validation issue was addressed with improved certificate validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An attacker in a privileged network position may be able to intercept network traffic. | NVD |
A certificate validation issue was addressed with improved certificate validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An attacker in a privileged network position may be able to intercept network traffic.
What it is to other things
| affects | apple/macos NVD |
| made_by | apple NVD |
Every value, with what each source said and its receipt
| Property | Source | Said | Means here | ||||
|---|---|---|---|---|---|---|---|
| Automatable automatable | NVD | no At least one of those steps needs a person. receipt
What the source handed over{
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} | — | ||||
| CVSS cvss | NVD | 4.8receipt
What the source handed over{
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} | — | ||||
| CVSS vector cvss_vector | NVD | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:Nreceipt
What the source handed over{
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} | — | ||||
| CWE cwe | NVD | CWE-295receipt
What the source handed over{
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} | — | ||||
| Exploitation exploitation | NVD | none No evidence of exploitation, and no public proof of concept. receipt
What the source handed over{
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} | — | ||||
| Fixed in fixed_in | NVD | 15.8, 26.7, 27receipt
What the source handed over{
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Every claim, by kind
vulnerability
| A certificate validation issue was addressed with improved certificate validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An attacker in a privileged network position may be able to intercept network traffic. zetlyn/cve-nvd · 2026-09-14 | automatable no cvss 4.8 cvss_vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N cwe CWE-295 exploitation none fixed_in 15.8, 26.7, 27 product macOS severity MEDIUM status Analyzed technical_impact partial vendor Apple | source |