Acceptance of Extraneous Untrusted Data With Trusted Data Affecting unbound package, versions [,1.25.1)
Threat Intelligence
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-UNMANAGED-UNBOUND-17111520
- published31 May 2026
- disclosed20 May 2026
- creditTaoFei Guo, Yang Luo, JianJun Chen
Introduced: 20 May 2026
CVE-2026-42960 (opens in a new tab)How to fix?
Upgrade unbound to version 1.25.1 or higher.
Overview
Affected versions of this package are vulnerable to Acceptance of Extraneous Untrusted Data With Trusted Data via the acceptance and caching of address records from the additional section of DNS replies when they accompany authority section RRSets other than NS. An attacker can inject attacker-controlled address records into the DNS cache by spoofing or fragmenting DNS response packets, potentially redirecting DNS resolution for affected domains.