CVE Tools
Sign in

CVE-2026-46629

Twig: Unbounded formatter memoisation in twig/intl-extra keyed on template-controlled arguments

Published: Jul 14, 2026Updated: Jul 16, 2026 Sources: CVE List NVDCWE-770
6.5MEDIUM
NVD MITRE
EPSS Score
0.3%
Top 77.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

Twig is a template language for PHP. Prior to 3.26.0, twig/intl-extra memoises IntlDateFormatter and NumberFormatter instances in arrays keyed by template-controlled filter arguments such as locale, pattern, and attrs, allowing a template to allocate many ICU formatter objects that remain pinned for the lifetime of the Twig\Environment. This issue is fixed in version 3.26.0.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-770

Affected Products

twigphp
oss-projectaka twig
TwigLibrary
OSS Libraries / web-framework
symfony
oss-projectaka twig (related), symfony framework
twigLibrary
OSS Libraries / web-framework

Exploitability

Official Patch Available
Is your org exposed to CVE-2026-46629?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://github.com/twigphp/Twig/security/advisories/GHSA-35wc-cvqg-78fp
github.com
https://github.com/twigphp/Twig/commit/6add9066fc5c0455eb764c1f3af6e4e4e3562419
github.com
https://github.com/twigphp/Twig/releases/tag/v3.26.0
github.com

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2026-46629 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows