CVE-2023-48193: Insecure Permissions vulnerability in JumpServer GPLv3 v.3.8.0 allows a remote attacker to execute arbitrary c

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2023-48193 is a critical-severity flaw (CVSS 9.8) affecting jumpserver. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Insecure Permissions vulnerability in JumpServer GPLv3 v.3.8.0 allows a remote attacker to execute arbitrary code via bypassing the command filtering function. NOTE: this is disputed because command filtering is not intended to restrict what code can be run by authorized users who are allowed to execute files.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.0% (top 19%)
CISA exploited list	No
Published	2023-11-28
Last modified	2026-07-09

Publisher (CNA): MITRE · Vendor: fit2cloud

Last updated 2026-07-09 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-11-28 21:15 UTCPublished CVE record published
2026-07-09 01:18 UTCUpdated Record last modified

fit2cloud jumpserver DOWNGRADE

Affected: 3.8.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.8.0

1. Check installed version

apt-cache policy jumpserver || rpm -q jumpserver || jumpserver --version

2. No fixed release: DOWNGRADE to a release before 3.8.0 (Debian / Ubuntu)

apt-cache madison jumpserver sudo apt install jumpserver=<VERSION_BEFORE_3.8.0> sudo apt-mark hold jumpserver

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list jumpserver sudo dnf downgrade jumpserver-<VERSION_BEFORE_3.8.0> sudo dnf versionlock add jumpserver

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-48193?

jumpserver: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-48193 being exploited?

CVE-2023-48193 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-48193 affect?

CVE-2023-48193 affects jumpserver. Severity is critical (CVSS 9.8). Insecure Permissions vulnerability in JumpServer GPLv3 v.3.8.0 allows a remote attacker to execute arbitrary code via bypassing the command filtering function. NOTE: this is disputed because command filtering is not intended to restrict wha

How urgent is CVE-2023-48193?

Priority 64/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

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References

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