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Public proof of conceptFix available

CVE-2022-36944

A public proof of concept exists; no exploitation attested.

  • Published2022-09-23
  • WeaknessCWE-502

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2022-09-2318:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-36944?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-36944?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV
Fedoraproject fedora
BranchAffectedFixed in
35.x= 35no fix published
36.x= 36no fix published
Scala-lang scala
BranchAffectedFixed in
2.13≥ 2.13.0, < 2.13.92.13.9
Scala-lang scala-collection-compat
BranchAffectedFixed in
2.9< 2.9.02.9.0

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • io.root.org.scala-lang:scala-libraryRoot:Mavenall versions · fixed in 2.13.8-root.io.1
  • io.root.org.scala-lang:scala-libraryRoot:Mavenall versions · fixed in 2.13.5-root.io.1
  • io.root.org.scala-lang:scala-libraryRoot:Mavenall versions · fixed in 2.13.6-root.io.1
  • io.root.org.scala-lang:scala-libraryRoot:Mavenall versions · fixed in 2.13.6-root.io.2
  • io.root.org.scala-lang:scala-libraryRoot:Mavenall versions · fixed in 2.13.8-root.io.2
  • io.root.org.scala-lang:scala-libraryRoot:Mavenall versions · fixed in 2.13.8-root.io.3
  • org.scala-lang:scala-libraryRoot:Mavenall versions · fixed in 2.13.6-aikido.2
  • org.scala-lang:scala-libraryRoot:Mavenall versions · fixed in 2.13.5-aikido.1

2 more package ranges on OSV.dev

Vendor advisories

  • CVE-2022-36944 Red Hat Product Security2 products fixed · 1 known affected

    scala: deserialization gadget chain

    scala as a component of Red Hat JBoss Fuse Service Works 6

  • RHSA-2023:5165 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat AMQ Streams 2.5.0 release and security update

  • RHSA-2023:3223 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat AMQ Streams 2.4.0 release and security update

Full record on NVD

Fix

  1. Vendor fix Red Hat Product Security RHSA-2023:5165 · 1 productBefore applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on. The References section of this erratum contains a download link (you must log in to download the update).
  2. Workaround from the vendor Red Hat Product Security RHSA-2023:5165 · 1 productUsers of Scala's LazyList should never permit deserialization of untrusted data.
  3. No fix planned, says the vendor Red Hat Product Security CVE-2022-36944 · 1 productOut of support scope

Advisories and patches

Detection

read 2026-11-02 22:42 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
1 repository, unverifiedyarocher/lazylist-cve-poc
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2022-09-23
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-8qv5-68g4-248j

Frequently asked questions

What is CVE-2022-36944?

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.

Is CVE-2022-36944 actively exploited?

A proof-of-concept exploit exists for CVE-2022-36944, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2022-36944?

CVE-2022-36944 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record