NewsCompaniesFlawsGuides
Get the app

CVE-2025-54313

From Exploited flaws, HARD’s guide to the flaws being used in attacks · Checked
This article is about a flaw in Prettier eslint-config-prettier. For every flaw being used in attacks, see Exploited flaws.

CVE-2025-54313 is a security flaw in Prettier eslint-config-prettier. A tampered release of Prettier eslint-config-prettier was published with malicious code built in. The US Cybersecurity and Infrastructure Security Agency (CISA) added it to its catalog of flaws known to be used in attacks on 22 Jan 2026.[1]

Prettier eslint-config-prettier is business software or equipment. Most families won’t have it, but attackers break into it to get inside companies, and from there to what those companies hold about their customers, patients and staff. Prettier has published a fix or advice.

Description

CISA calls it an embedded malicious code in Prettier eslint-config-prettier. In its words: “Prettier eslint-config-prettier contains an embedded malicious code vulnerability. Installing an affected package executes an install.js file that launches the node-gyp.dll malware on Windows.”[1]

The underlying weakness is CWE-506, in MITRE’s list of common software weaknesses.[2]

It scores 7.5 out of 10 on the Common Vulnerability Scoring System, which rates it high, scored by the organisation that published the CVE using CVSS 3.1.[2]

Affected versions

NVD’s record doesn’t list version ranges for it; Prettier’s advisory has them[3]. CISA names the product as Prettier eslint-config-prettier.

Most families won’t have Prettier eslint-config-prettier; it’s for whoever looks after IT at work.

Exploitation

CISA added it to its catalog of known exploited vulnerabilities on 22 Jan 2026, 187 days after it was made public. CISA lists a flaw only when it has reliable evidence of it being exploited, and gave US federal agencies until 12 Feb 2026 to fix it.[1]

FIRST’s Exploit Prediction Scoring System, which estimates how likely a flaw is to be used in attacks in the next 30 days from what it sees across the internet, puts it at 5%. That’s in the top 8% of the flaws it scores.[4]

CISA assesses it as not automatable: each attack takes some work.

CISA doesn’t say who was attacked, or how.

Fix

Prettier has published a fix or advice.[3] CISA’s required action: “Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.”[1]

  1. Check whether you use it.Prettier eslint-config-prettier is business software or equipment, so most families won’t have it. If you run a business, or work from home on company equipment, ask whoever looks after your IT.
  2. Send this page to your IT person.Ask them to confirm it’s fixed, or not in use. CISA gave US government agencies until 12 Feb 2026 to fix it.
  3. If it can’t be fixed, take it offline.CISA’s advice when there’s no fix is to stop using the product, or take it off the internet, until there is one.

You can’t fix someone else’s server, but you can watch for what follows a break-in like this: a breach notice, a password reset you didn’t ask for, or a scam message that knows things it shouldn’t. HARD watches for those for you and your family.

Timeline

DateEvent
The flaw is made public in the National Vulnerability Database, with a severity score of 7.5.[2]
CISA adds it to its catalog of flaws known to be used in attacks.[1]
CISA’s deadline for US government agencies to fix it.[1]
FIRST puts the odds of it being used in attacks in the next 30 days at 5%.[4]

See also

Similar flaws

  • CVE-2026-8398, Daemon Tools Lite: tools lite embedded malicious code ·
  • CVE-2026-48027, Nx Console: console embedded malicious code ·
  • CVE-2026-45321, TanStack: unspecified ·
  • CVE-2026-33634, Aquasecurity Trivy: embedded malicious code ·
  • CVE-2025-59374, ASUS Live Update: embedded malicious code ·

Added the same day

  • CVE-2025-68645, Synacor Zimbra Collaboration Suite (ZCS): PHP remote file inclusion ·
  • CVE-2025-34026, Versa Concerto: improper authentication ·
  • CVE-2025-31125, Vitejs: improper access control ·

References

  1. ^ Cybersecurity and Infrastructure Security Agency. “Prettier eslint-config-prettier Embedded Malicious Code Vulnerability”. Known Exploited Vulnerabilities Catalog, added 22 Jan 2026.
  2. ^ National Institute of Standards and Technology. “CVE-2025-54313 Detail”. National Vulnerability Database, published 19 Jul 2025.
  3. ^ Prettier. Advisories and fixes: npmjs.com.
  4. ^ FIRST. “Exploit Prediction Scoring System”. EPSS 0.051, percentile 92.4, 31 Oct 2026.
  5. CVE Program. “CVE-2025-54313”. The official CVE record.

This article is built from CISA’s catalog (version 2026.10.30), NVD’s record and FIRST’s scores, kept in HARD’s database and checked every morning. The plain English is HARD’s.