CVE-2026-120217: A vulnerability was detected in Delgan loguru 0.7.3

Routine

MEDIUM 4.3

CVE-2026-120217 is a medium-severity flaw (CVSS 4.3) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was detected in Delgan loguru 0.7.3. The affected element is the function AnsiParser.feed of the file loguru/_colorizer.py of the component ANSI Color-Markup Parser. Performing a manipulation results in inefficient regular expression complexity. The attack is possible to be carried out remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	n/a
CISA exploited list	No
Weakness	CWE-400, CWE-1333
Published	2026-11-01
Last modified	2026-11-01

Publisher (CNA): VulDB

Last updated 2026-11-01 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Timeline

2026-11-01 07:17 UTCPublished CVE record published
2026-11-01 07:17 UTCUpdated Record last modified

Advisories and coverage

Research and news

VulDB Recent Entries: CVE-2026-120217 | Delgan loguru 0.7.3 ANSI Color-Markup Parser loguru/_colorizer.py AnsiParser.feed redos 2026-10-31

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-120217?

No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.

Is CVE-2026-120217 being exploited?

CVE-2026-120217 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-120217 affect?

CVE-2026-120217 affects affected software. Severity is medium (CVSS 4.3). A vulnerability was detected in Delgan loguru 0.7.3. The affected element is the function AnsiParser.feed of the file loguru/_colorizer.py of the component ANSI Color-Markup Parser. Performing a manipulation results in inefficient regular e

How urgent is CVE-2026-120217?

Priority 15/100. No elevated risk signals yet.

References

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