How severe is CVE-2026-22661?

CVE-2026-22661 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-22661 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-22661?

CVE-2026-22661 affects Fka Prompts.chat. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-22661?

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

Does CVE-2026-22661 have an EU (EUVD) identifier?

Yes. CVE-2026-22661 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18821.

When was CVE-2026-22661 published?

CVE-2026-22661 was published on 2026-04-03 and last updated on 2026-06-17.

CVE-2026-22661

CVE-2026-22661 is a high-severity vulnerability in Fka Prompts.chat with a CVSS 3.x base score of 8.1. 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: High (CVSS 3.x base score 8.1)
CVSS v4: 8.6
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-18821
Weakness: CWE-22
Affected product: Fka Prompts.chat
Published: 2026-04-03
Last modified: 2026-06-17

Description

prompts.chat prior to commit 0f8d4c3 contains a path traversal vulnerability in skill file handling that allows attackers to write arbitrary files to the client system by crafting malicious ZIP archives with unsanitized filenames containing path traversal sequences. Attackers can exploit missing server-side filename validation to inject path traversal sequences ../ into skill file archives, which when extracted by vulnerable tools writing files outside the intended directory and overwriting shell initialization files to achieve code execution.

Frequently asked questions

What is CVE-2026-22661?: prompts.chat prior to commit 0f8d4c3 contains a path traversal vulnerability in skill file handling that allows attackers to write arbitrary files to the client system by crafting malicious ZIP archives with unsanitized filenames containing path traversal sequences. Attackers can exploit missing server-side filename validation to inject path traversal sequences ../ into skill file archives, which when extracted by vulnerable tools writing files outside the intended directory and overwriting shell initialization files to achieve code execution.
How severe is CVE-2026-22661?: CVE-2026-22661 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-22661 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-22661?: CVE-2026-22661 affects Fka Prompts.chat. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-22661?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-22661 have an EU (EUVD) identifier?: Yes. CVE-2026-22661 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18821.
When was CVE-2026-22661 published?: CVE-2026-22661 was published on 2026-04-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:fka:prompts.chat:*:*:*:*:*:*:*:*

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CVE-2026-22665 — High (CVSS 8.1): prompts.chat prior to commit 1464475, contains an identity confusion vulnerability due to inconsistent case-sensitive…
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