Out-of-bounds Write Affecting apple/swift-crypto package, versions >=4.0.0, <4.3.1
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-COCOAPODS-APPLESWIFTCRYPTO-16072992
- published15 Apr 2026
- disclosed3 Apr 2026
- creditCantina
Introduced: 3 Apr 2026
NewCVE-2026-28815 (opens in a new tab)How to fix?
Upgrade apple/swift-crypto to version 4.3.1 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Write in the decapsulate() function when attacker-controlled input of insufficient length is passed to the underlying C API, which expects a fixed-size buffer. An attacker can cause a crash or potentially disclose memory contents by supplying a malformed encapsulated key that is shorter than required, leading to an out-of-bounds read in the C decapsulation process.