CVE-2026-5467: A vulnerability was identified in Casdoor 2.356.0

Routine

MEDIUM 4.3DOWNGRADE

CVE-2026-5467 is a medium-severity flaw (CVSS 4.3) affecting casdoor. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was identified in Casdoor 2.356.0. Affected by this issue is some unknown functionality of the component OAuth Authorization Request Handler. Such manipulation of the argument redirect_uri leads to open redirect. It is possible to launch the attack remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.3% (top 75%)
CISA exploited list	No
Weakness	CWE-601
Published	2026-04-03
Last modified	2026-07-24

Publisher (CNA): VulDB · Vendor: casbin

Last updated 2026-07-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-03 12:16 UTCPublished CVE record published
2026-07-24 20:10 UTCUpdated Record last modified

casbin casdoor DOWNGRADE

Affected: 2.356.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.356.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.356.0 (Debian / Ubuntu)

apt-cache madison casdoor sudo apt install casdoor=<VERSION_BEFORE_2.356.0> sudo apt-mark hold casdoor

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

dnf --showduplicates list casdoor sudo dnf downgrade casdoor-<VERSION_BEFORE_2.356.0> sudo dnf versionlock add casdoor

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-2026-5467?

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

Is CVE-2026-5467 being exploited?

CVE-2026-5467 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-2026-5467 affect?

CVE-2026-5467 affects casdoor. Severity is medium (CVSS 4.3). A vulnerability was identified in Casdoor 2.356.0. Affected by this issue is some unknown functionality of the component OAuth Authorization Request Handler. Such manipulation of the argument redirect_uri leads to open redirect. It is possi

How urgent is CVE-2026-5467?

Priority 21/100. No elevated risk signals yet.

Related CVEs

CVE-2026-5469 MEDIUM 4.7 DOWNGRADE A weakness has been identified in Casdoor 2.356.0
CVE-2026-5468 LOW 3.5 DOWNGRADE A security flaw has been discovered in Casdoor 2.356.0
CVE-2026-6815 MEDIUM 5.9 UPGRADE An arbitrary file write vulnerability exists in Casdoor's Local File System storage provider

References

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