CVE-2026-5831
CVE-2026-5831 is a medium-severity vulnerability with a CVSS 3.x base score of 6.3. 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-77.
Key facts
- Severity: Medium (CVSS 3.x base score 6.3)
- CVSS v2: 6.5
- CVSS v4: 5.3
- EPSS exploit prediction: 1% (62nd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-20830
- Weakness: CWE-77
- Published:
- Last modified:
Description
A security flaw has been discovered in Agions taskflow-ai up to 2.1.8. This impacts an unknown function of the file src/mcp/server/handlers.ts of the component terminal_execute. Performing a manipulation results in os command injection. The attack is possible to be carried out remotely. Upgrading to version 2.1.9 will fix this issue. The patch is named c1550b445b9f24f38c4414e9a545f5f79f23a0fe. Upgrading the affected component is recommended. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
Frequently asked questions
- What is CVE-2026-5831?
- A security flaw has been discovered in Agions taskflow-ai up to 2.1.8. This impacts an unknown function of the file src/mcp/server/handlers.ts of the component terminal_execute. Performing a manipulation results in os command injection. The attack is possible to be carried out remotely. Upgrading to version 2.1.9 will fix this issue. The patch is named c1550b445b9f24f38c4414e9a545f5f79f23a0fe. Upgrading the affected component is recommended. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
- How severe is CVE-2026-5831?
- CVE-2026-5831 has a CVSS 3.x base score of 6.3, 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 low, and availability low.
- Is CVE-2026-5831 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-5831?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-5831 have an EU (EUVD) identifier?
- Yes. CVE-2026-5831 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20830.
- When was CVE-2026-5831 published?
- CVE-2026-5831 was published on 2026-04-09 and last updated on 2026-06-17.
References
- https://github.com/Agions/taskflow-ai/
- https://github.com/Agions/taskflow-ai/commit/c1550b445b9f24f38c4414e9a545f5f79f23a0fe
- https://github.com/Agions/taskflow-ai/issues/2
- https://github.com/Agions/taskflow-ai/releases/tag/v2.1.9
- https://vuldb.com/submit/789515
- https://vuldb.com/vuln/356278
- https://vuldb.com/vuln/356278/cti
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