How severe is CVE-2026-21892?

CVE-2026-21892 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2026-21892 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-21892?

CVE-2026-21892 affects Uchicago Parsl. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-21892?

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

Does CVE-2026-21892 have an EU (EUVD) identifier?

Yes. CVE-2026-21892 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-1034.

When was CVE-2026-21892 published?

CVE-2026-21892 was published on 2026-01-08 and last updated on 2026-06-17.

CVE-2026-21892

CVE-2026-21892 is a medium-severity vulnerability in Uchicago Parsl 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-89.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-1034
Weakness: CWE-89
Affected product: Uchicago Parsl
Published: 2026-01-08
Last modified: 2026-06-17

Description

Parsl is a Python parallel scripting library. A SQL Injection vulnerability exists in the parsl-visualize component of versions prior to 2026.01.05. The application constructs SQL queries using unsafe string formatting (Python % operator) with user-supplied input (workflow_id) directly from URL routes. This allows an unauthenticated attacker with access to the visualization dashboard to inject arbitrary SQL commands, potentially leading to data exfiltration or denial of service against the monitoring database. Version 2026.01.05 fixes the issue.

Frequently asked questions

What is CVE-2026-21892?: Parsl is a Python parallel scripting library. A SQL Injection vulnerability exists in the parsl-visualize component of versions prior to 2026.01.05. The application constructs SQL queries using unsafe string formatting (Python % operator) with user-supplied input (workflow_id) directly from URL routes. This allows an unauthenticated attacker with access to the visualization dashboard to inject arbitrary SQL commands, potentially leading to data exfiltration or denial of service against the monitoring database. Version 2026.01.05 fixes the issue.
How severe is CVE-2026-21892?: CVE-2026-21892 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2026-21892 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-21892?: CVE-2026-21892 affects Uchicago Parsl. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-21892?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-21892 have an EU (EUVD) identifier?: Yes. CVE-2026-21892 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-1034.
When was CVE-2026-21892 published?: CVE-2026-21892 was published on 2026-01-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:uchicago:parsl:*:*:*:*:*:python:*:*

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