CVE-2025-68458: Webpack is a module bundler

Q: How do I fix CVE-2025-68458?

webpack: upgrade to 5.104.1. Exact commands for each OS are on this page.

Q: Is CVE-2025-68458 being exploited?

CVE-2025-68458 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-68458 affect?

CVE-2025-68458 affects webpack. Severity is low (CVSS 3.7). Webpack is a module bundler. From version 5.49.0 to before 5.104.1, when experiments.buildHttp is enabled, webpack’s HTTP(S) resolver (HttpUriPlugin) can be bypassed to fetch resources from hosts outside allowedUris by using crafted URLs th

Q: How urgent is CVE-2025-68458?

Priority 21/100. Public exploit reference

Routine

LOW 3.7UPGRADE

CVE-2025-68458 is a low-severity flaw (CVSS 3.7) affecting webpack. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Webpack is a module bundler. From version 5.49.0 to before 5.104.1, when experiments.buildHttp is enabled, webpack’s HTTP(S) resolver (HttpUriPlugin) can be bypassed to fetch resources from hosts outside allowedUris by using crafted URLs that include userinfo (username:password@host). If allowedUris enforcement relies on a raw string prefix check (e.g., uri.startsWith(allowed)), a URL that looks allow-listed can pass validation while the actual n

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	3.7 (Low)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.2% (top 86%)
CISA exploited list	No
Weakness	CWE-918
Published	2026-02-05
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: webpack.js

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-02-05 23:15 UTCPublished CVE record published
2026-06-17 09:59 UTCUpdated Record last modified

webpack.js webpack UPGRADE

Affected: >= 5.49.0 and < 5.104.1

Fixed in: 5.104.1

Safe to downgrade to: a release before 5.49.0

1. Check installed version

npm ls webpack

2. UPGRADE to 5.104.1

npm install webpack@">=5.104.1"

3. If no update is available yet, DOWNGRADE to a release before 5.49.0

npm view webpack versions npm install webpack@"<5.49.0"

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2025-68458?

webpack: upgrade to 5.104.1. Exact commands for each OS are on this page.

Is CVE-2025-68458 being exploited?

CVE-2025-68458 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-2025-68458 affect?

CVE-2025-68458 affects webpack. Severity is low (CVSS 3.7). Webpack is a module bundler. From version 5.49.0 to before 5.104.1, when experiments.buildHttp is enabled, webpack’s HTTP(S) resolver (HttpUriPlugin) can be bypassed to fetch resources from hosts outside allowedUris by using crafted URLs th

How urgent is CVE-2025-68458?

Priority 21/100. Public exploit reference

Software pages

Webpack vulnerabilities

Related CVEs

CVE-2025-68157 LOW 3.7 UPGRADE Webpack is a module bundler
CVE-2024-43788 MEDIUM 6.4 UPGRADE Webpack is a module bundler

References

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