CVE-2026-31798: medium-severity vulnerability in jumpserver
JumpServer Improper Certificate Validation in Custom SMS API Client
Published
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5epss 0.1%
exploitation probability
0.1%top 98% of all CVEs
observed exploitation
nono source reports it
JumpServer is an open source bastion host and an operation and maintenance security audit system. Prior to v4.10.16-lts, JumpServer improperly validates certificates in the Custom SMS API Client. When JumpServer sends MFA/OTP codes via Custom SMS API, an attacker can intercept the request and capture the verification code BEFORE it reaches the user's phone. This vulnerability is fixed in v4.10.16-lts.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
Affected products
jumpserver · jumpserverRelated CVEs — jumpserver
In the same product, most dangerous first.
CVE-2023-42442HIGHJumpServer session replays download without authenticationEPSS 63.0%CVE-2023-42820HIGHRandom seed leakage in JumpserverEPSS 6.3%CVE-2024-29201CRITICALJumpServer's insecure Ansible playbook validation leads to RCE in CeleryEPSS 6.0%CVE-2024-29202CRITICALJumpServer vulnerable to Jinja2 template injection in Ansible leads to RCE in CeleryEPSS 5.9%CVE-2023-42819HIGHPath traversal in JumpserverEPSS 2.2%CVE-2023-43651HIGHRemote code execution on the host system via MongoDB shell in jumpserverEPSS 2.1%