CVE-2025-68157: Webpack is a module bundler

Q: How do I fix CVE-2025-68157?

webpack: upgrade to 5.104.0. Exact commands for each OS are on this page.

Q: Is CVE-2025-68157 being exploited?

CVE-2025-68157 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-2025-68157 affect?

CVE-2025-68157 affects webpack. Severity is low (CVSS 3.7). Webpack is a module bundler. From version 5.49.0 to before 5.104.0, when experiments.buildHttp is enabled, webpack’s HTTP(S) resolver (HttpUriPlugin) enforces allowedUris only for the initial URL, but does not re-validate allowedUris after

Q: How urgent is CVE-2025-68157?

Priority 21/100. Public exploit reference

Routine

LOW 3.7UPGRADE

CVE-2025-68157 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 5.104.0, when experiments.buildHttp is enabled, webpack’s HTTP(S) resolver (HttpUriPlugin) enforces allowedUris only for the initial URL, but does not re-validate allowedUris after following HTTP 30x redirects. As a result, an import that appears restricted to a trusted allow-list can be redirected to HTTP(S) URLs outside the allow-list. This is a policy/allow-list bypass that enables bui

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 09:58 UTCUpdated Record last modified

webpack.js webpack UPGRADE

Affected: >= 5.49.0 and < 5.104.0

Fixed in: 5.104.0

Safe to downgrade to: a release before 5.49.0

1. Check installed version

npm ls webpack

2. UPGRADE to 5.104.0

npm install webpack@">=5.104.0"

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-2025-68157?

webpack: upgrade to 5.104.0. Exact commands for each OS are on this page.

Is CVE-2025-68157 being exploited?

CVE-2025-68157 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-2025-68157 affect?

CVE-2025-68157 affects webpack. Severity is low (CVSS 3.7). Webpack is a module bundler. From version 5.49.0 to before 5.104.0, when experiments.buildHttp is enabled, webpack’s HTTP(S) resolver (HttpUriPlugin) enforces allowedUris only for the initial URL, but does not re-validate allowedUris after

How urgent is CVE-2025-68157?

Priority 21/100. Public exploit reference

Software pages

Webpack vulnerabilities

Related CVEs

CVE-2025-68458 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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