How severe is CVE-2025-6854?

CVE-2025-6854 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2025-6854 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-6854?

CVE-2025-6854 affects Chatchat-space Langchain-chatchat. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-6854?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-6854 have an EU (EUVD) identifier?

Yes. CVE-2025-6854 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-19479.

When was CVE-2025-6854 published?

CVE-2025-6854 was published on 2025-06-29 and last updated on 2026-06-17.

CVE-2025-6854

CVE-2025-6854 is a medium-severity vulnerability in Chatchat-space Langchain-chatchat with a CVSS 3.x base score of 4.3. 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-22.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.0
CVSS v4: 2.1
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-19479
Weakness: CWE-22
Affected product: Chatchat-space Langchain-chatchat
Published: 2025-06-29
Last modified: 2026-06-17

Description

A vulnerability classified as problematic was found in chatchat-space Langchain-Chatchat up to 0.3.1. This vulnerability affects unknown code of the file /v1/files?purpose=assistants. The manipulation leads to path traversal. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Frequently asked questions

What is CVE-2025-6854?: A vulnerability classified as problematic was found in chatchat-space Langchain-Chatchat up to 0.3.1. This vulnerability affects unknown code of the file /v1/files?purpose=assistants. The manipulation leads to path traversal. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
How severe is CVE-2025-6854?: CVE-2025-6854 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2025-6854 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-6854?: CVE-2025-6854 affects Chatchat-space Langchain-chatchat. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-6854?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-6854 have an EU (EUVD) identifier?: Yes. CVE-2025-6854 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-19479.
When was CVE-2025-6854 published?: CVE-2025-6854 was published on 2025-06-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:chatchat-space:langchain-chatchat:*:*:*:*:*:*:*:*

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