CVE-2022-36944
Scala 2.13.x before 2.13.9 has a Java deserialization chain in its JAR file.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 11.0%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.
Description
Scala 2.13.x before 2.13.9 has a Java deserialization chain in its JAR file. On its own, it cannot be exploited. There is only a risk in conjunction with Java object deserialization within an application. In such situations, it allows attackers to erase contents of arbitrary files, make network connections, or possibly run arbitrary code (specifically, Function0 functions) via a gadget chain.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 10.97% probability · 96th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-502
- Affected
- scala-lang/scala · scala-lang/scala-collection-compat · fedoraproject/fedora
- Source
- cve@mitre.org
EPSS moved from 10.6% on 20 September 2026 to 11.0% on 3 November 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- https://discuss.lightbend.com/t/impact-of-cve-2022-36944-on-akka-cluster-akka-actor-akka-remote/10007/2Third Party Advisory
- https://github.com/scala/scala-collection-compat/releases/tag/v2.9.0Release Notes, Third Party Advisory
- https://github.com/scala/scala/pull/10118Exploit, Patch, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6ZOZVWY3X72FZZCCRAKRJYTQOJ6LUD6Z/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3WMKPFAMFQE3HJVRQ5KOJUTWG264SXI/
- https://www.scala-lang.org/download/Vendor Advisory
- https://discuss.lightbend.com/t/impact-of-cve-2022-36944-on-akka-cluster-akka-actor-akka-remote/10007/2Third Party Advisory
- https://github.com/scala/scala-collection-compat/releases/tag/v2.9.0Release Notes, Third Party Advisory
- https://github.com/scala/scala/pull/10118Exploit, Patch, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6ZOZVWY3X72FZZCCRAKRJYTQOJ6LUD6Z/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3WMKPFAMFQE3HJVRQ5KOJUTWG264SXI/
- https://www.scala-lang.org/download/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.