9.1

CVE-2026-48805: symfony twig Protection Mechanism Failure

CVSS: 9.1v3.1CriticalAnalyzed
AliasesUBUNTU-CVE-2026-48805DEBIAN-CVE-2026-48805
Published 14-07-2026Last modified 16-07-2026
Open JSON

Vulnerability summary

CVE-2026-48805 is a critical (CVSS 9.1) Protection Mechanism Failure vulnerability in symfony twig. EPSS estimates a 0.48% chance of exploitation in the next 30 days, higher than 40.3% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.1/10
010
Critical · v3.1 (NVD)
EPSS score
0.48%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 14-07-2026
    PublishedVulnerability first disclosed.
  2. 16-07-2026
    Last modifiedVulnerability information updated.

Description

Twig is a template language for PHP. Prior to 3.27.0, deprecated internal wrappers in src/Resources/core.php do not forward the current sandbox state to CoreExtension::checkArrow(), arraySome(), and arrayEvery(), allowing legacy calls such as twig_array_some(), twig_array_every(), and twig_check_arrow_in_sandbox() to bypass sandbox callable restrictions. This issue is fixed in version 3.27.0.

CVSS metrics

6 scores · 4 sources · 2 versions

EPSS trend

Probability

0.48%

Chance of exploitation in the next 30 days

Percentile

40%

Versus all other CVEs

30-day change

0.00 pp

From 0.48% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.48%

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

Debian1 product
  • php-twigAll versions (No fix recorded) | < 3.27.0-0+deb13u1 | < 3.27.0-1
Symfony1 product
Twigphp1 product
Ubuntu1 product
  • php-twigAll versions (No fix recorded)

4 vendors · 4 products

References

7 links