CVE Intelligence
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CVE-2026-86948 — This issue was addressed by enforcing library validation on the affected binaries. This issue is...

This issue was addressed by enforcing library validation on the affected binaries. This issue is fixed in Xcode 27. An app may be able to break out of its sandbox.

Published Oct 19, 2026 · Updated Oct 21, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP, GitHub Security Advisories · CNA: apple

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.
How the score was calculated
  • EPSS 0.1% (30-day exploitation probability)+0

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation
Not confirmed
Not in CISA KEV — an absence of record, not proof it is unexploited.
EPSS FIRST
0.14%
ahead of 3% of scored CVEs · Oct 22, 2026
Affects
Apple
Xcode
CVSS base
—
Score not published yet.

CISA SSVC assessment CISA

Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.

Exploitation
None
none · proof-of-concept · active
Automatable
No
can an attacker script the kill-chain steps
Technical impact
Total
partial · total control of the vulnerable component

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

  1. Identify exposed assets running the affected vendor/product/version combinations (Apple Xcode).
  2. No fix documented in the sources: reduce exposure and monitor the vendor advisory.
  3. Search available logs for exploit probes, errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

VendorProductVersionsStatusSource
Apple Xcode < 27 Vulnerable CVE Program (cve.org) e CISA ADP

EPSS over time FIRST

Oct 20, 2026 → Oct 22, 2026 · 3 reading(s) · max 0.14%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

  • Not enough vector or weakness data: use the affected application’s logs as a starting point.
application logs

Timeline

What happened to this CVE, newest first.

  • 2026
  • SSVC assessment updated
    Oct 21, 2026 · CVE Program (cve.org) e CISA ADP
  • Source status changed · Awaiting Analysis → Undergoing Analysis
    Oct 21, 2026 · NIST National Vulnerability Database
  • Source status changed · Received → Awaiting Analysis
    Oct 20, 2026 · NIST National Vulnerability Database
  • Record published
    Oct 19, 2026
  • Affected products added · apple/xcode
    Oct 19, 2026 · CVE Program (cve.org) e CISA ADP
  • Source status changed · → Received
    Oct 19, 2026 · NIST National Vulnerability Database
  • Record created in this database
    Oct 19, 2026 · Alertas do Telegram
  • CVE published
    Oct 19, 2026 · apple

Source activity

Repeated readings are counted rather than listed.

  • 2× References added · Oct 19, 2026 – Oct 21, 2026
  • 1× Official description updated · Oct 19, 2026 – Oct 19, 2026

References

3 on the record

Elsewhere on this site

Apple
every CVE for this vendor

Related CVEs (same products)

  • CVE-2026-86949 This issue was addressed by enforcing library validation on the affected binaries. This issue is... 4d
  • CVE-2026-86874 Out-of-bounds Read in Apple Xcode 4d
  • CVE-2026-86875 Improper Input Validation in Apple Xcode 4d
  • CVE-2026-65393 Incorrect Authorization in Apple Xcode Sep 14, 2026
  • CVE-2026-28889 Improper Privilege Management in Apple Xcode Mar 24, 2026
  • CVE-2026-28890 Out-of-bounds Read in Apple Xcode Mar 24, 2026

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

  • No CVSS score published by NVD, the CNA, CISA or GitHub so far.
  • No fixed version, patch or mitigation documented.
  • No CWE classification.
  • No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
  • No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
  • No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-86948 is "This issue was addressed by enforcing library validation on the affected binaries. This issue is...", rated Unknown. It affects Xcode (Apple); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. EPSS 0.14% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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