How severe is CVE-2026-12822?

CVE-2026-12822 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-12822 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-12822?

CVE-2026-12822 affects Langflow. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-12822?

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

Does CVE-2026-12822 have an EU (EUVD) identifier?

Yes. CVE-2026-12822 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38203.

When was CVE-2026-12822 published?

CVE-2026-12822 was published on 2026-06-22 and last updated on 2026-06-26.

CVE-2026-12822

CVE-2026-12822 is a medium-severity vulnerability in Langflow with a CVSS 3.x base score of 5.3. 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-74.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 4.3
CVSS v4: 1.9
EPSS exploit prediction: 0% (9th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-38203
Weakness: CWE-74
Affected product: Langflow
Published: 2026-06-22
Last modified: 2026-06-26

Description

A vulnerability was identified in langflow-ai langflow up to 1.9.3. This affects an unknown function of the component Bundle URL Loader. The manipulation leads to code injection. The attack needs to be performed locally. The vendor was contacted early about this disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2026-12822?: A vulnerability was identified in langflow-ai langflow up to 1.9.3. This affects an unknown function of the component Bundle URL Loader. The manipulation leads to code injection. The attack needs to be performed locally. The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2026-12822?: CVE-2026-12822 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-12822 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-12822?: CVE-2026-12822 affects Langflow. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-12822?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-12822 have an EU (EUVD) identifier?: Yes. CVE-2026-12822 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38203.
When was CVE-2026-12822 published?: CVE-2026-12822 was published on 2026-06-22 and last updated on 2026-06-26.

References

Affected products (1)

cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*

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