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VulnerabilityPublished

CVE-2026-120217: Delgan loguru · Uncontrolled Resource Consumption

Source GCVE Database

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Authoritative record:CVE-2026-120217· Medium 5.3

Public exploit available · CVSS 5.3 Medium.

Data as of 1 Nov 2026, 10:22 UTC

CVSS 4.0 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (VulDB)CVSS 4.05.3
CNA (VulDB)CVSS 3.14.3
CNA (VulDB)CVSS 3.04.3
CNA (VulDB)CVSS 2.04.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 1 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: evidence found.

    CVSS exploit maturity: proof of concept public

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 1 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
DelganloguruAffected
  • =0.7.3
Fixed in–
PyPIlogurupkg:pypi/loguruOther threatsAffected
  • =0.7.3
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Users should consider applying workarounds such as limiting input size or rate-limiting access to the affected function if possible. Monitor for vendor updates and apply any future patches promptly. Since this is a denial of service vulnerability, prioritizing mitigation in environments where availability is critical is advised.

Description

A vulnerability in Delgan loguru version 0.7.3 affects the AnsiParser.feed function in the ANSI Color-Markup Parser component. The issue involves inefficient regular expression complexity, which can be exploited remotely to cause a denial of service by resource exhaustion. Public exploit code is available, and the vendor has not responded to disclosure attempts. The CVSS score is 4.3, indicating a medium severity impact focused on availability.

References

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