CVE-2026-86983: Apple swift-crypto · A remote attacker may be able to terminate a process that passes attacker-controlled input to the
Affects Apple swift-cryptoSource CVE Database V5
Not known to be exploited : upgrade to 5.0.3 when convenient.
Data as of 28 Oct 2026, 23:27 UTC
Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD
- Patch
- Available – fixed in 5.0.3
Exploitation evidence
Disclosed: evidence found.
CVE published 28 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade swift-crypto and apple/swift-crypto to 5.0.3.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Appleswift-crypto | Affected
| Fixed in
|
SwiftURLapple/swift-cryptopkg:swift/apple/swift-cryptoOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade swift-crypto to version 5.0.3 or later to apply the official fix for this vulnerability.
Description
A vulnerability in swift-crypto allows a remote attacker to terminate a process by passing attacker-controlled input of unbounded length to the P-384 VOPRF API. This issue is fixed in version 5.0.3.