CVE-2025-27108: dom-expressions is a Fine-Grained Runtime for Performant DOM Rendering

Q: How do I fix CVE-2025-27108?

dom expressions: upgrade to 0.39.5. Exact commands for each OS are on this page.

Q: Is CVE-2025-27108 being exploited?

CVE-2025-27108 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-2025-27108 affect?

CVE-2025-27108 affects dom expressions. Severity is high (CVSS 7.3). dom-expressions is a Fine-Grained Runtime for Performant DOM Rendering. In affected versions the use of javascript's `.replace()` opens up to potential Cross-site Scripting (XSS) vulnerabilities with the special replacement patterns beginni

Q: How urgent is CVE-2025-27108?

Priority 36/100. High severity; Remotely exploitable, no login, no user action

Routine

HIGH 7.3REMOTEUPGRADE

CVE-2025-27108 is a high-severity flaw (CVSS 7.3) affecting dom expressions. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

dom-expressions is a Fine-Grained Runtime for Performant DOM Rendering. In affected versions the use of javascript's `.replace()` opens up to potential Cross-site Scripting (XSS) vulnerabilities with the special replacement patterns beginning with `$`. Particularly, when the attributes of `Meta` tag from solid-meta are user-defined, attackers can utilise the special replacement patterns, either `$'` or `$\`` to achieve XSS. The solid-meta package

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.3 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 80%)
CISA exploited list	No
Weakness	CWE-79, CWE-116
Published	2025-02-21
Last modified	2026-06-17

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

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

Am I affected?

Timeline

2025-02-21 22:15 UTCPublished CVE record published
2026-06-17 09:03 UTCUpdated Record last modified

ryansolid dom expressions UPGRADE

Affected: < 0.39.5

Fixed in: 0.39.5

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy dom-expressions || rpm -q dom-expressions || dom-expressions --version

2. UPGRADE to 0.39.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade dom-expressions

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade dom-expressions

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2025-27108?

dom expressions: upgrade to 0.39.5. Exact commands for each OS are on this page.

Is CVE-2025-27108 being exploited?

CVE-2025-27108 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-2025-27108 affect?

CVE-2025-27108 affects dom expressions. Severity is high (CVSS 7.3). dom-expressions is a Fine-Grained Runtime for Performant DOM Rendering. In affected versions the use of javascript's `.replace()` opens up to potential Cross-site Scripting (XSS) vulnerabilities with the special replacement patterns beginni

How urgent is CVE-2025-27108?

Priority 36/100. High severity; Remotely exploitable, no login, no user action

References

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