5.4

CVE-2026-46628: symfony twig Improper Encoding or Escaping of Output

CVSS: 5.4v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-46628DEBIAN-CVE-2026-46628CGA-675m-w5vh-m884
Published 14-07-2026Last modified 15-07-2026
Open JSON

Vulnerability summary

CVE-2026-46628 is a medium (CVSS 5.4) Improper Encoding or Escaping of Output vulnerability in symfony twig. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 20.8% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.4/10
010
Medium · v3.1 (NVD)
EPSS score
0.29%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 1
CGA-XF66-QFF9-38XJ

Timeline

  1. 14-07-2026
    PublishedVulnerability first disclosed.
  2. 15-07-2026
    Last modifiedVulnerability information updated.

Description

Twig is a template language for PHP. Prior to 3.26.0, the deprecated spaceless filter is registered as safe for HTML, causing Twig autoescaping to emit attacker-controlled markup unescaped when spaceless is applied to untrusted input. This issue is fixed in version 3.26.0.

CVSS metrics

7 scores · 5 sources · 2 versions

EPSS trend

Probability

0.29%

Chance of exploitation in the next 30 days

Percentile

21%

Versus all other CVEs

30-day change

0.00 pp

From 0.29% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.29%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard1 product
  • drupal-11.3< 11.3.10-r0
Debian1 product
  • php-twig< 3.5.1-1+deb12u3 | < 3.27.0-0+deb13u1 | < 3.26.0-1
Symfony1 product
Twigphp1 product
Ubuntu1 product
  • php-twigAll versions (No fix recorded)

5 vendors · 5 products

References

9 links