CVE-2023-25166: formula is a math and string formula parser

Routine

MEDIUM 5.5UPGRADE

CVE-2023-25166 is a medium-severity flaw (CVSS 5.5) affecting formula. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

formula is a math and string formula parser. In versions prior to 3.0.1 crafted user-provided strings to formula's parser might lead to polynomial execution time and a denial of service. Users should upgrade to 3.0.1+. There are no known workarounds for this vulnerability.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.6% (top 51%)
CISA exploited list	No
Weakness	CWE-1333
Published	2023-02-08
Last modified	2026-10-28

Publisher (CNA): GitHub, Inc. · Vendor: hapi

Last updated 2026-10-28 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-02-08 20:15 UTCPublished CVE record published
2026-10-28 19:10 UTCUpdated Record last modified

hapi formula UPGRADE

Affected: < 3.0.1

Fixed in: 3.0.1

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls formula

2. UPGRADE to 3.0.1

npm install formula@">=3.0.1"

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-2023-25166?

formula: upgrade to 3.0.1. Exact commands for each OS are on this page.

Is CVE-2023-25166 being exploited?

CVE-2023-25166 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-2023-25166 affect?

CVE-2023-25166 affects formula. Severity is medium (CVSS 5.5). formula is a math and string formula parser. In versions prior to 3.0.1 crafted user-provided strings to formula's parser might lead to polynomial execution time and a denial of service. Users should upgrade to 3.0.1+. There are no known wo

How urgent is CVE-2023-25166?

Priority 32/100. No elevated risk signals yet.

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References

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