How severe is CVE-2025-54791?

CVE-2025-54791 has a CVSS score of 5.3/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by CVE-2025-54791?

CVE-2025-54791 affects the following packages: omero-web (PyPI). Ecosystems affected: PyPI.

How do I fix CVE-2025-54791?

Update omero-web to 5.29.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-54791 is resolved across your whole dependency graph.

How do I detect CVE-2025-54791 in my PyPI dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for omero-web, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2025-54791 if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Is CVE-2025-54791 actively exploited in the wild?

No public exploit code has been indexed for CVE-2025-54791 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2025-54791?

CVE-2025-54791 has an EPSS (Exploit Prediction Scoring System) score of 0.3%, placing it in the 16th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2025-54791?

CVE-2025-54791 is classified as CWE-209 (CWE-209). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2025-54791 published, and has it been updated?

CVE-2025-54791 was published on August 13, 2025 and was last updated on August 12, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐍

🐍 PyPI

Not in CISA KEV

MEDIUM severity

CVE-2025-54791 — omero-web

MEDIUMFix: ome/omero-web@8aa2789

CVE-2025-54791 is a medium-severity (CVSS 5.3) CWE-209 vulnerability in omero-web. A fix is available for omero-web — see the affected versions and patch details below.

OMERO.web displays unecessary user information when requesting to reset the password

Also known asGHSA-gpmg-4x4g-mr5rPYSEC-2026-1717

Published

Aug 13, 2025

Updated

Aug 12, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Sep 26, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2025-54791.

EPSS Exploitation Probability

via FIRST.org ↗

0.3%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs16th percentile — riskier than 16% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2025-54791 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 379,842 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

1 pkg affected

🐍omero-web

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

Background

If an error occurred when resetting a user's password using the Forgot Password option in OMERO.web, the error message displayed on the Web page can disclose information about the user.

Impact

OMERO.web before 5.29.1

Patches

User should upgrade to 5.29.2 or higher

Workarounds

Disable the Forgot password option in OMERO.web using the omero.web.show_forgot_password configuration property¹.

Thanks to Christopher Youd who reported the issue.

Open an issue in omero-web Email us at [email protected]

Footnotes

https://omero.readthedocs.io/en/stable/sysadmins/config.html#omero.web.show_forgot_password ↩

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐍PyPI	`omero-web`	all versions	5.29.2`pip install --upgrade 'omero-web==5.29.2'`

Affected Products

1 product · 1 configurations

Application

omero-webopenmicroscopy

< 5.29.2

range

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for omero-web, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update omero-web to 5.29.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-54791 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

### Background If an error occurred when resetting a user's password using the ``Forgot Password`` option in OMERO.web, the error message displayed on the Web page can disclose information about the user. ### Impact OMERO.web before 5.29.1 ### Patches User should upgrade to 5.29.2 or higher ### Workarounds Disable the ``Forgot password`` option in OMERO.web using the ``omero.web.show_forgot_password`` configuration property[^1]. Thanks to Christopher Youd who reported the issue. Open an issue in [omero-web](https://github.com/ome/omero-web) Email us at [[email protected]](mailt