Critical severity · published Feb 10, 2026
CVE-2026-1774
CASL Ability, versions 2.4.0 through 6.7.4, contains a prototype pollution vulnerability.
9.8
CVSS
0.7%
EPSS
No
On KEV
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 54% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CA
CASL Ability · CASL Ability
2.4.0 through 6.7.4 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-1774
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-1774
cwe.mitre.org
https://cwe.mitre.org/data/definitions/1321.html
developer.mozilla.org
https://developer.mozilla.org/en-US/docs/Web/Security/Attacks/Prototype_pollution
github.com
https://github.com/stalniy/casl/tree/master/packages/casl-ability
www.kb.cert.org
https://www.kb.cert.org/vuls/id/458422