CVE-2026-90454: medium-severity vulnerability in CISA Malcolm
Missing authorization in Malcolm
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 0.2%
A deployment mode intended to expose only read access to a bundled packet-analysis component's interface denies a list of write-capable routes by pattern, but the pattern omits routes that modify tags attached to stored session records, and the proxy configuration otherwise permits the request method those routes use. This allows an authenticated user on a deployment intended to be read-only to add or remove tags on stored session records.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Affected products
CISA · MalcolmRelated CVEs — CISA Malcolm
In the same product, most dangerous first.
CVE-2026-107333HIGHIncorrect Authorization in MalcolmEPSS 1.2%CVE-2026-107335MEDIUMImproper Handling of Highly Compressed Data in MalcolmEPSS 0.5%CVE-2026-107362HIGHServer-Side Request Forgery in MalcolmEPSS 0.3%CVE-2026-90445HIGHPath Traversal in MalcolmEPSS 0.3%CVE-2026-90444HIGHOS Command Injection in MalcolmEPSS 0.3%CVE-2026-90456CRITICALUse of default credentials in MalcolmEPSS 0.3%