Quick answers
- Is CVE-2026-44066 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-44066 being exploited in the wild.
- How severe is CVE-2026-44066?
- High severity, with a CVSS score of 7.1, published 21 May 2026.
- Which products and versions are affected?
- Netatalk 3.1.0 through 4.4.2.
- Is there a fix for CVE-2026-44066?
- A patch was published on 2026-05-21: Fixed in version 4.4.3 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-44066 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-44066?
- Check whether you run Netatalk at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A heap out-of-bounds read vulnerability (CWE-125) exists in Netatalk's Spotlight RPC unmarshalling logic. The root cause is a failure to consistently enforce request buffer boundaries while processing client-controlled structure metadata, as the unmarshaller does not properly track the actual buffer length. An authenticated remote attacker can exploit this by sending crafted RPC requests to the afpd process. Successful exploitation can result in the disclosure of adjacent heap data, resource exhaustion, or a crash of the child process. The vulnerability is fixed in version 4.4.3; a workaround is available by disabling Spotlight indexing in the configuration.
Affected products
- Netatalk Netatalk 3.1.0 through 4.4.2
Timeline
- 2026-05-13: disclosed: Initial disclosure date
- 2026-05-21: advisory: NVD publication date
- 2026-05-21: patched: Fixed in version 4.4.3