PatchTheCVECVE-2023-52240: The Kantega SAML SSO OIDC Kerberos Single Sign-on apps before 6.20.0 for Atlassian products allow XSS if SAML
32
Routine
MEDIUM 6.1UPGRADEUPGRADEUPGRADE
CVE-2023-52240 is a medium-severity flaw (CVSS 6.1) affecting kantega saml sso oidc kerberos single sign-on, kantega saml sso oidc kerberos single sign-on, kantega saml sso oidc kerberos single sign-on. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
The Kantega SAML SSO OIDC Kerberos Single Sign-on apps before 6.20.0 for Atlassian products allow XSS if SAML POST Binding is enabled. This affects 4.4.2 through 4.14.8 before 4.14.9, 5.0.0 through 5.11.4 before 5.11.5, and 6.0.0 through 6.19.0 before 6.20.0. The full product names are Kantega SAML SSO OIDC Kerberos Single Sign-on for Jira Data Center & Server (Kantega SSO Enterprise), Kantega SAML SSO OIDC Kerberos Single Sign-on for Confluence
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 6.1 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 0.5% (top 58%) |
| CISA exploited list | No |
| Weakness | CWE-79 |
| Published | 2023-12-29 |
| Last modified | 2026-06-17 |
Publisher (CNA): MITRE · Vendor: kantega-sso
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
kantega-sso kantega saml sso oidc kerberos single sign-on UPGRADE
Affected: >= 4.4.2 and < 4.14.9 · >= 5.0.0 and < 5.11.5 · >= 6.0.0 and < 6.20.0
Fixed in: 4.14.9, 5.11.5, 6.20.0
Safe to downgrade to: a release before 4.4.2
1. Check installed version
apt-cache policy kantega-saml-sso-oidc-kerberos-single-sign-on || rpm -q kantega-saml-sso-oidc-kerberos-single-sign-on || kantega-saml-sso-oidc-kerberos-single-sign-on --version
2. UPGRADE to 4.14.9 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade kantega-saml-sso-oidc-kerberos-single-sign-on
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade kantega-saml-sso-oidc-kerberos-single-sign-on
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 4.4.2 (Debian / Ubuntu)
apt-cache madison kantega-saml-sso-oidc-kerberos-single-sign-on
sudo apt install kantega-saml-sso-oidc-kerberos-single-sign-on=<VERSION_BEFORE_4.4.2>
sudo apt-mark hold kantega-saml-sso-oidc-kerberos-single-sign-on
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list kantega-saml-sso-oidc-kerberos-single-sign-on
sudo dnf downgrade kantega-saml-sso-oidc-kerberos-single-sign-on-<VERSION_BEFORE_4.4.2>
sudo dnf versionlock add kantega-saml-sso-oidc-kerberos-single-sign-on
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.
kantega-sso kantega saml sso oidc kerberos single sign-on UPGRADE
Affected: >= 4.4.2 and < 4.14.9 · >= 5.0.0 and < 5.11.5 · >= 6.0.0 and < 6.20.0
Fixed in: 4.14.9, 5.11.5, 6.20.0
Safe to downgrade to: a release before 4.4.2
1. Check installed version
apt-cache policy kantega-saml-sso-oidc-kerberos-single-sign-on || rpm -q kantega-saml-sso-oidc-kerberos-single-sign-on || kantega-saml-sso-oidc-kerberos-single-sign-on --version
2. UPGRADE to 4.14.9 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade kantega-saml-sso-oidc-kerberos-single-sign-on
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade kantega-saml-sso-oidc-kerberos-single-sign-on
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 4.4.2 (Debian / Ubuntu)
apt-cache madison kantega-saml-sso-oidc-kerberos-single-sign-on
sudo apt install kantega-saml-sso-oidc-kerberos-single-sign-on=<VERSION_BEFORE_4.4.2>
sudo apt-mark hold kantega-saml-sso-oidc-kerberos-single-sign-on
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list kantega-saml-sso-oidc-kerberos-single-sign-on
sudo dnf downgrade kantega-saml-sso-oidc-kerberos-single-sign-on-<VERSION_BEFORE_4.4.2>
sudo dnf versionlock add kantega-saml-sso-oidc-kerberos-single-sign-on
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.
kantega-sso kantega saml sso oidc kerberos single sign-on UPGRADE
Affected: >= 4.4.2 and < 4.14.9 · >= 5.0.0 and < 5.11.5 · >= 6.0.0 and < 6.20.0
Fixed in: 4.14.9, 5.11.5, 6.20.0
Safe to downgrade to: a release before 4.4.2
1. Check installed version
apt-cache policy kantega-saml-sso-oidc-kerberos-single-sign-on || rpm -q kantega-saml-sso-oidc-kerberos-single-sign-on || kantega-saml-sso-oidc-kerberos-single-sign-on --version
2. UPGRADE to 4.14.9 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade kantega-saml-sso-oidc-kerberos-single-sign-on
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade kantega-saml-sso-oidc-kerberos-single-sign-on
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 4.4.2 (Debian / Ubuntu)
apt-cache madison kantega-saml-sso-oidc-kerberos-single-sign-on
sudo apt install kantega-saml-sso-oidc-kerberos-single-sign-on=<VERSION_BEFORE_4.4.2>
sudo apt-mark hold kantega-saml-sso-oidc-kerberos-single-sign-on
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list kantega-saml-sso-oidc-kerberos-single-sign-on
sudo dnf downgrade kantega-saml-sso-oidc-kerberos-single-sign-on-<VERSION_BEFORE_4.4.2>
sudo dnf versionlock add kantega-saml-sso-oidc-kerberos-single-sign-on
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.
kantega-sso kantega saml sso oidc kerberos single sign-on UPGRADE
Affected: >= 4.4.2 and < 4.14.9
Fixed in: 4.14.9
Safe to downgrade to: a release before 4.4.2
1. Check installed version
apt-cache policy kantega-saml-sso-oidc-kerberos-single-sign-on || rpm -q kantega-saml-sso-oidc-kerberos-single-sign-on || kantega-saml-sso-oidc-kerberos-single-sign-on --version
2. UPGRADE to 4.14.9 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade kantega-saml-sso-oidc-kerberos-single-sign-on
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade kantega-saml-sso-oidc-kerberos-single-sign-on
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 4.4.2 (Debian / Ubuntu)
apt-cache madison kantega-saml-sso-oidc-kerberos-single-sign-on
sudo apt install kantega-saml-sso-oidc-kerberos-single-sign-on=<VERSION_BEFORE_4.4.2>
sudo apt-mark hold kantega-saml-sso-oidc-kerberos-single-sign-on
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list kantega-saml-sso-oidc-kerberos-single-sign-on
sudo dnf downgrade kantega-saml-sso-oidc-kerberos-single-sign-on-<VERSION_BEFORE_4.4.2>
sudo dnf versionlock add kantega-saml-sso-oidc-kerberos-single-sign-on
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.
kantega-sso kantega saml sso oidc kerberos single sign-on UPGRADE
Affected: >= 4.4.2 and < 4.14.9 · >= 5.0.0 and < 5.11.5 · >= 6.0.0 and < 6.20.0
Fixed in: 4.14.9, 5.11.5, 6.20.0
Safe to downgrade to: a release before 4.4.2
1. Check installed version
apt-cache policy kantega-saml-sso-oidc-kerberos-single-sign-on || rpm -q kantega-saml-sso-oidc-kerberos-single-sign-on || kantega-saml-sso-oidc-kerberos-single-sign-on --version
2. UPGRADE to 4.14.9 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade kantega-saml-sso-oidc-kerberos-single-sign-on
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade kantega-saml-sso-oidc-kerberos-single-sign-on
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 4.4.2 (Debian / Ubuntu)
apt-cache madison kantega-saml-sso-oidc-kerberos-single-sign-on
sudo apt install kantega-saml-sso-oidc-kerberos-single-sign-on=<VERSION_BEFORE_4.4.2>
sudo apt-mark hold kantega-saml-sso-oidc-kerberos-single-sign-on
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list kantega-saml-sso-oidc-kerberos-single-sign-on
sudo dnf downgrade kantega-saml-sso-oidc-kerberos-single-sign-on-<VERSION_BEFORE_4.4.2>
sudo dnf versionlock add kantega-saml-sso-oidc-kerberos-single-sign-on
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.
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-2023-52240?
kantega saml sso oidc kerberos single sign-on: upgrade to 4.14.9, 5.11.5, 6.20.0; kantega saml sso oidc kerberos single sign-on: upgrade to 4.14.9, 5.11.5, 6.20.0; kantega saml sso oidc kerberos single sign-on: upgrade to 4.14.9, 5.11.5, 6.20.0. Exact commands for each OS are on this page.
Is CVE-2023-52240 being exploited?
CVE-2023-52240 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-2023-52240 affect?
CVE-2023-52240 affects kantega saml sso oidc kerberos single sign-on, kantega saml sso oidc kerberos single sign-on, kantega saml sso oidc kerberos single sign-on. Severity is medium (CVSS 6.1). The Kantega SAML SSO OIDC Kerberos Single Sign-on apps before 6.20.0 for Atlassian products allow XSS if SAML POST Binding is enabled. This affects 4.4.2 through 4.14.8 before 4.14.9, 5.0.0 through 5.11.4 before 5.11.5, and 6.0.0 through 6.
How urgent is CVE-2023-52240?
Priority 32/100. No elevated risk signals yet.
Software pages
Atlassian Confluence vulnerabilities · Atlassian Jira vulnerabilities