How severe is CVE-2026-0558?

CVE-2026-0558 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-0558 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-0558?

CVE-2026-0558 affects Lollms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-0558?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-0558 have an EU (EUVD) identifier?

Yes. CVE-2026-0558 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17035.

When was CVE-2026-0558 published?

CVE-2026-0558 was published on 2026-03-29 and last updated on 2026-06-17.

CVE-2026-0558

CVE-2026-0558 is a critical-severity vulnerability in Lollms with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-17035
Weakness: CWE-287
Affected product: Lollms
Published: 2026-03-29
Last modified: 2026-06-17

Description

A vulnerability in parisneo/lollms, up to and including version 2.2.0, allows unauthenticated users to upload and process files through the `/api/files/extract-text` endpoint. This endpoint does not enforce authentication, unlike other file-related endpoints, and lacks the `Depends(get_current_active_user)` dependency. This issue can lead to denial of service (DoS) through resource exhaustion, information disclosure, and violation of the application's documented security policies.

Frequently asked questions

What is CVE-2026-0558?: A vulnerability in parisneo/lollms, up to and including version 2.2.0, allows unauthenticated users to upload and process files through the `/api/files/extract-text` endpoint. This endpoint does not enforce authentication, unlike other file-related endpoints, and lacks the `Depends(get_current_active_user)` dependency. This issue can lead to denial of service (DoS) through resource exhaustion, information disclosure, and violation of the application's documented security policies.
How severe is CVE-2026-0558?: CVE-2026-0558 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-0558 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-0558?: CVE-2026-0558 affects Lollms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-0558?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-0558 have an EU (EUVD) identifier?: Yes. CVE-2026-0558 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17035.
When was CVE-2026-0558 published?: CVE-2026-0558 was published on 2026-03-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:lollms:lollms:*:*:*:*:*:*:*:*

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