How severe is CVE-2026-33140?

CVE-2026-33140 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-33140 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-33140?

CVE-2026-33140 affects Parzivalhack Pyspector. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-33140?

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

Does CVE-2026-33140 have an EU (EUVD) identifier?

Yes. CVE-2026-33140 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-13776.

When was CVE-2026-33140 published?

CVE-2026-33140 was published on 2026-03-20 and last updated on 2026-06-17.

CVE-2026-33140

CVE-2026-33140 is a medium-severity vulnerability in Parzivalhack Pyspector with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v4: 5.3
EPSS exploit prediction: 0% (12th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-13776
Weakness: CWE-79
Affected product: Parzivalhack Pyspector
Published: 2026-03-20
Last modified: 2026-06-17

Description

PySpector is a static analysis security testing (SAST) Framework engineered for modern Python development workflows. PySpector versions 0.1.6 and prior are affected by a stored Cross-Site Scripting (XSS) vulnerability in the HTML report generator. When PySpector scans a Python file containing JavaScript payloads (i.e. inside a string passed to eval() ), the flagged code snippet is interpolated into the HTML report without sanitization. Opening the generated report in a browser causes the embedded JavaScript to execute in the browser's local file context. This issue has been patched in version 0.1.7.

Frequently asked questions

What is CVE-2026-33140?: PySpector is a static analysis security testing (SAST) Framework engineered for modern Python development workflows. PySpector versions 0.1.6 and prior are affected by a stored Cross-Site Scripting (XSS) vulnerability in the HTML report generator. When PySpector scans a Python file containing JavaScript payloads (i.e. inside a string passed to eval() ), the flagged code snippet is interpolated into the HTML report without sanitization. Opening the generated report in a browser causes the embedded JavaScript to execute in the browser's local file context. This issue has been patched in version 0.1.7.
How severe is CVE-2026-33140?: CVE-2026-33140 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-33140 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33140?: CVE-2026-33140 affects Parzivalhack Pyspector. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-33140?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-33140 have an EU (EUVD) identifier?: Yes. CVE-2026-33140 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-13776.
When was CVE-2026-33140 published?: CVE-2026-33140 was published on 2026-03-20 and last updated on 2026-06-17.

References

https://github.com/ParzivalHack/PySpector/security/advisories/GHSA-2gmv-2r3v-jxj2

Affected products (1)

cpe:2.3:a:parzivalhack:pyspector:*:*:*:*:*:python:*:*

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