# CVE-2026-112518: CVE-2026-112518

Status: published. Published: 2026-10-26. Updated: 2026-11-04.

An issue with signature validation was addressed with improved checks. This issue is fixed in iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, tvOS 27.2, visionOS 27.2, watchOS 27.2. An attacker in a privileged network position may be able to impersonate a Kerberos KDC.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Apple / iOS and iPadOS: ≥ 0; < 27.2 (affected, custom). Source: CNA: apple
- Apple / macOS: ≥ 0; < 27.2 (affected, custom). Source: CNA: apple
- Apple / tvOS: ≥ 0; < 27.2 (affected, custom). Source: CNA: apple
- Apple / visionOS: ≥ 0; < 27.2 (affected, custom). Source: CNA: apple
- Apple / watchOS: ≥ 0; < 27.2 (affected, custom). Source: CNA: apple

## Severity and prioritization

- CVSS 3.1: 6.3 (medium); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L; source: ADP: CISA-ADP

- CISA KEV: No listing in collected sources

- EPSS: 0.22% as of 2026-11-03; percentile 12.73%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-347

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://support.apple.com/en-us/149230 (CNA: apple)

- https://support.apple.com/en-us/149521 (CNA: apple)

- https://support.apple.com/en-us/149524 (CNA: apple)

- https://support.apple.com/en-us/149525 (CNA: apple)

- https://support.apple.com/en-us/149526 (CNA: apple)

## Provenance

- CNA: apple: https://www.cve.org/CVERecord?id=CVE-2026-112518; retrieved 2026-11-04; source updated 2026-11-04

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-112518; retrieved 2026-11-04; source updated Not reported

Revision: ca78a1298e566477e579679d5cdcc1f2c7d0371210a03ad0cc43f3464310bf14

Canonical: https://y2.dev/cve/CVE-2026-112518

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

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