CVE-2026-46629

MEDIUMNVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.5 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 77% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 6.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity65% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
43%
KEV
Not listed

Published

May 21, 2026

Last Modified

July 16, 2026

Advisory Details (3)

Auto-updated Jul 15, 2026
Patch available. Sources: github_commit, github_release, github.
github Patch Available

Unbounded formatter memoisation in twig/intl-extra keyed on template-controlled arguments · Advisory · twigphp/Twig · GitHub

https://github.com/twigphp/Twig/security/advisories/GHSA-35wc-cvqg-78fp
github_release Patch Available

v3.26.0

Patch available: twigphp/Twig v3.26.0

https://github.com/twigphp/Twig/releases/tag/v3.26.0
github_commit Patch Available

commit 6add9066fc5c (twigphp/Twig)

Patch available: twigphp/Twig v3.26.0 (contains commit 6add9066fc5c)

https://github.com/twigphp/Twig/commit/6add9066fc5c0455eb764c1f3af6e4e4e3562419

Vendor Advisories for CVE-2026-46629(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
php-twig2.14.3-1 ... 4.0.0~alpha1-1 (88 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
php-twig3.5.1-1, 3.5.1-1+deb12u1, 3.5.1-1+deb12u23.5.1-1+deb12u3—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
php-twig3.20.0-2 ... 3.26.0-1 (16 versions)3.27.0-0+deb13u1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
php-twig3.20.0-2 ... 3.24.0-1 (14 versions)3.26.0-1—
Packagist(1)
PackageVulnerable rangeFixed inDependents
twig/intl-extrav2.12.0 ... v3.9.2 (60 versions)3.26.0—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 44× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-25 13:49 UTCEPSS rescore
  2. 2026-08-23 16:46 UTCEG score recompute
  3. 2026-08-23 00:19 UTCEPSS rescore
  4. 2026-08-21 23:49 UTCEPSS rescore
  5. 2026-08-21 21:44 UTCEG score recompute
  6. 2026-08-20 22:55 UTCEPSS rescore
  7. 2026-08-20 18:42 UTCEG score recompute
  8. 2026-08-19 17:04 UTCEPSS rescore
  9. 2026-08-18 13:48 UTCEPSS rescore
  10. 2026-08-17 13:47 UTCEPSS rescore
  11. 2026-08-17 09:46 UTCEG score recompute
  12. 2026-08-16 14:56 UTCEPSS rescore
  13. 2026-08-16 05:34 UTCEG score recompute
  14. 2026-08-16 02:14 UTCEPSS rescore
  15. 2026-08-15 03:45 UTCEG score recompute
  16. 2026-08-15 01:30 UTCEPSS rescore
  17. 2026-08-14 01:55 UTCEG score recompute
  18. 2026-08-13 22:00 UTCEPSS rescore
  19. 2026-08-12 13:51 UTCEPSS rescore
  20. 2026-08-12 10:05 UTCEG score recompute
  21. 2026-08-11 08:13 UTCEG score recompute
  22. 2026-08-11 00:00 UTCEPSS rescore
  23. 2026-08-10 06:22 UTCEG score recompute
  24. 2026-08-09 13:46 UTCEPSS rescore
  25. 2026-08-09 04:32 UTCEG score recompute
Show 40 more
  1. 2026-08-08 16:37 UTCEPSS rescore
  2. 2026-08-08 02:42 UTCEG score recompute
  3. 2026-08-07 00:53 UTCEG score recompute
  4. 2026-08-06 13:47 UTCEPSS rescore
  5. 2026-08-05 21:12 UTCEG score recompute
  6. 2026-08-05 19:17 UTCEPSS rescore
  7. 2026-08-04 15:10 UTCEPSS rescore
  8. 2026-08-04 10:39 UTCEPSS rescore
  9. 2026-08-03 21:03 UTCEG score recompute
  10. 2026-08-03 10:36 UTCEPSS rescore
  11. 2026-08-02 19:13 UTCEG score recompute
  12. 2026-08-02 02:27 UTCEPSS rescore
  13. 2026-08-01 17:23 UTCEG score recompute
  14. 2026-08-01 04:16 UTCEPSS rescore
  15. 2026-07-30 16:28 UTCEPSS rescore
  16. 2026-07-30 01:30 UTCEPSS rescore
  17. 2026-07-29 17:40 UTCEG score recompute
  18. 2026-07-28 15:36 UTCEPSS rescore
  19. 2026-07-27 14:13 UTCEPSS rescore
  20. 2026-07-26 14:54 UTCEPSS rescore
  21. 2026-07-26 14:54 UTCEPSS rescore
  22. 2026-07-25 14:18 UTCEPSS rescore
  23. 2026-07-24 14:17 UTCEPSS rescore
  24. 2026-07-23 14:18 UTCEPSS rescore
  25. 2026-07-23 03:17 UTCEG score recompute▲ 1.20
  26. 2026-07-22 14:08 UTCEPSS rescore
  27. 2026-07-21 15:24 UTCEPSS rescore
  28. 2026-07-20 17:08 UTCEPSS rescore
  29. 2026-07-19 14:31 UTCEPSS rescore
  30. 2026-07-19 02:29 UTCEPSS rescore
  31. 2026-07-18 10:04 UTCEPSS rescore
  32. 2026-07-16 17:03 UTCEPSS rescore
  33. 2026-07-16 04:26 UTCNVD updateCVSS v3 → 6.5
  34. 2026-07-15 16:57 UTCEPSS rescore
  35. 2026-07-14 21:36 UTCEG score recompute▲ 5.30
  36. 2026-07-14 21:35 UTCMITRE cvelistV5CVSS v3 → 5.3 · CVSS v4 → 5.3 · severity → MEDIUM
  37. 2026-06-14 23:18 UTCEPSS rescore
  38. 2026-06-13 23:00 UTCEPSS rescore
  39. 2026-06-12 23:12 UTCEPSS rescore
  40. 2026-05-24 06:10 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-46629?
CVE-2026-46629 is a medium vulnerability published on May 21, 2026. 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…
When was CVE-2026-46629 disclosed?
CVE-2026-46629 was first published in the National Vulnerability Database on May 21, 2026, with the most recent update on July 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46629 actively exploited?
CVE-2026-46629 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 56.8% of all scored CVEs.
What is the CVSS score of CVE-2026-46629?
CVE-2026-46629 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-46629?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46629, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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