PatchTheCVECVE-2026-7557: An improper verification of cryptographic signature vulnerability in the SAML authentication module of Progres
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CRITICAL 9.1REMOTEUPGRADE
CVE-2026-7557 is a critical-severity flaw (CVSS 9.1) affecting marklogic server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
An improper verification of cryptographic signature vulnerability in the SAML authentication module of Progress MarkLogic Server before 11.3.6 and 12.0.3 allows an unauthenticated remote attacker to bypass authentication and impersonate any user, including administrators. This vulnerability affects deployments with SAML single sign-on enabled.
Why this priority
- Critical severity
- CISA SSVC: automatable with total technical impact
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.1 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.5% (top 61%) |
| CISA exploited list | No |
| Weakness | CWE-347 |
| Published | 2026-08-05 |
| Last modified | 2026-10-23 |
Publisher (CNA): Progress Software Corporation · Vendor: progress
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
progress marklogic server UPGRADE
Affected: < 11.3.6 · >= 12.0.0 and < 12.0.3
Fixed in: 11.3.6, 12.0.3
Safe to downgrade to: a release before 12.0.0
1. Check installed version
apt-cache policy marklogic-server || rpm -q marklogic-server || marklogic-server --version
2. UPGRADE to 11.3.6 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade marklogic-server
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade marklogic-server
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 12.0.0 (Debian / Ubuntu)
apt-cache madison marklogic-server
sudo apt install marklogic-server=<VERSION_BEFORE_12.0.0>
sudo apt-mark hold marklogic-server
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list marklogic-server
sudo dnf downgrade marklogic-server-<VERSION_BEFORE_12.0.0>
sudo dnf versionlock add marklogic-server
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.
Exact fixes by distribution
Fedora 46 · rubygem-eventmachine · FIXED · 1.2.7-37.fc46 · FEDORA-2026-7194c202a2 · source
sudo dnf upgrade --advisory=FEDORA-2026-7194c202a2
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.
Related CVEs
- CVE-2026-9192 CRITICAL 9.8 UPGRADE An authentication bypass vulnerability in the ODBC App Server of Progress MarkLogic Server before 11.3.6 and 1
- CVE-2026-9190 CRITICAL 9.1 UPGRADE An HTTP request smuggling vulnerability in the HTTP App Server of Progress MarkLogic Server before 11.3.6 and
- CVE-2026-7329 CRITICAL 9.9 UPGRADE An improper privilege management vulnerability in the SQL, SPARQL, and Optic REST query interfaces of Progress
- CVE-2026-9195 CRITICAL 9.3 UPGRADE A cross-site scripting vulnerability in the Query Console of Progress MarkLogic Server before 11.3.6 and 12.0.
- CVE-2026-8709 CRITICAL 9.9 UPGRADE An improper privilege management vulnerability in the REST API document patch operation of Progress MarkLogic