CVE-2026-48807

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.1 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 70% 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
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.1Exploit: 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 3.27.0, the sandbox __toString() checks do not fully cover Traversable values passed to join and replace filters or operands evaluated by the in and not in operators, allowing contained Stringable objects to be coerced to strings without consulting the sandbox policy. This issue is fixed in version 3.27.0.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
41(Track)
EG Risk 41/100SSVC: 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
Severity91% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
31%
KEV
Not listed

Published

June 30, 2026

Last Modified

July 17, 2026

Advisory Details (2)

Auto-updated Sep 16, 2026
Patch available. Sources: github_release, github.
github Patch Available

Sandbox `__toString()` policy bypass via `Traversable` in `join`/`replace` filters and via the `in`/`not in` operators · Advisory · twigphp/Twig · GitHub

https://github.com/twigphp/Twig/security/advisories/GHSA-8x9c-rmqh-456c
github_release Patch Available

v3.27.0

Patch available: twigphp/Twig v3.27.0

https://github.com/twigphp/Twig/releases/tag/v3.27.0

Vendor Advisories for CVE-2026-48807(1)

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

Affected Packages

(2 across 2 ecosystems)
Debian:14(1)
PackageVulnerable rangeFixed inDependents
php-twig3.20.0-2 ... 3.26.0-1 (15 versions)3.27.0-1—
Packagist(1)
PackageVulnerable rangeFixed inDependents
twig/twig1.3.0 ... v3.9.3 (243 versions)3.27.0—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 32× 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. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-18 06:48 UTCEG score recompute
  3. 2026-09-16 14:08 UTCEPSS rescore
  4. 2026-09-16 05:15 UTCEPSS rescore
  5. 2026-09-14 00:47 UTCEG score recompute
  6. 2026-09-13 16:47 UTCEPSS rescore
  7. 2026-09-12 15:09 UTCEG score recompute
  8. 2026-09-11 14:53 UTCEPSS rescore
  9. 2026-09-10 09:35 UTCEPSS rescore
  10. 2026-09-08 22:01 UTCEPSS rescore
  11. 2026-09-07 16:01 UTCEPSS rescore
  12. 2026-09-06 14:35 UTCEG score recompute
  13. 2026-09-06 13:47 UTCEPSS rescore
  14. 2026-09-04 05:06 UTCEPSS rescore
  15. 2026-09-02 14:12 UTCEPSS rescore
  16. 2026-09-01 13:54 UTCEPSS rescore
  17. 2026-09-01 04:40 UTCEPSS rescore
  18. 2026-08-30 22:23 UTCEG score recompute
  19. 2026-08-30 19:17 UTCEPSS rescore
  20. 2026-08-30 18:01 UTCEG score recompute
  21. 2026-08-30 01:22 UTCEPSS rescore
  22. 2026-08-28 21:41 UTCEPSS rescore
  23. 2026-08-27 22:40 UTCEG score recompute
  24. 2026-08-27 14:25 UTCEPSS rescore
  25. 2026-08-26 14:46 UTCEPSS rescore
Show 74 more
  1. 2026-08-25 13:49 UTCEPSS rescore
  2. 2026-08-24 21:08 UTCEG score recompute
  3. 2026-08-24 11:39 UTCEG score recompute
  4. 2026-08-23 00:47 UTCEG score recompute
  5. 2026-08-23 00:19 UTCEPSS rescore
  6. 2026-08-22 01:31 UTCEG score recompute
  7. 2026-08-21 23:49 UTCEPSS rescore
  8. 2026-08-21 00:11 UTCEG score recompute
  9. 2026-08-20 22:55 UTCEPSS rescore
  10. 2026-08-20 05:30 UTCEG score recompute
  11. 2026-08-19 17:04 UTCEPSS rescore
  12. 2026-08-18 23:00 UTCEG score recompute
  13. 2026-08-18 13:48 UTCEPSS rescore
  14. 2026-08-18 00:01 UTCEG score recompute
  15. 2026-08-17 13:47 UTCEPSS rescore
  16. 2026-08-16 16:48 UTCEG score recompute
  17. 2026-08-16 14:56 UTCEPSS rescore
  18. 2026-08-16 04:33 UTCEG score recompute
  19. 2026-08-16 02:14 UTCEPSS rescore
  20. 2026-08-15 02:55 UTCEG score recompute
  21. 2026-08-15 01:30 UTCEPSS rescore
  22. 2026-08-13 22:18 UTCEG score recompute
  23. 2026-08-13 22:00 UTCEPSS rescore
  24. 2026-08-12 16:09 UTCEG score recompute
  25. 2026-08-12 13:51 UTCEPSS rescore
  26. 2026-08-11 15:37 UTCEG score recompute
  27. 2026-08-11 03:22 UTCEG score recompute
  28. 2026-08-11 00:00 UTCEPSS rescore
  29. 2026-08-09 14:36 UTCEG score recompute
  30. 2026-08-09 13:46 UTCEPSS rescore
  31. 2026-08-08 18:11 UTCEG score recompute
  32. 2026-08-08 16:37 UTCEPSS rescore
  33. 2026-08-07 17:40 UTCEG score recompute
  34. 2026-08-06 17:09 UTCEG score recompute
  35. 2026-08-06 13:47 UTCEPSS rescore
  36. 2026-08-05 20:43 UTCEG score recompute
  37. 2026-08-05 19:17 UTCEPSS rescore
  38. 2026-08-04 18:47 UTCEG score recompute
  39. 2026-08-04 15:10 UTCEPSS rescore
  40. 2026-08-04 14:42 UTCEG score recompute
  41. 2026-08-04 10:39 UTCEPSS rescore
  42. 2026-08-03 13:54 UTCEG score recompute
  43. 2026-08-03 10:36 UTCEPSS rescore
  44. 2026-08-02 04:58 UTCEG score recompute
  45. 2026-08-02 02:27 UTCEPSS rescore
  46. 2026-08-01 04:23 UTCEG score recompute
  47. 2026-08-01 04:16 UTCEPSS rescore
  48. 2026-07-30 17:20 UTCEG score recompute
  49. 2026-07-30 16:28 UTCEPSS rescore
  50. 2026-07-30 13:11 UTCEG score recompute
  51. 2026-07-30 02:27 UTCEG score recompute
  52. 2026-07-30 01:30 UTCEPSS rescore
  53. 2026-07-28 19:10 UTCEG score recompute
  54. 2026-07-28 15:37 UTCEPSS rescore
  55. 2026-07-27 16:50 UTCEG score recompute
  56. 2026-07-26 18:37 UTCEG score recompute
  57. 2026-07-26 14:54 UTCEPSS rescore
  58. 2026-07-26 13:51 UTCEG score recompute
  59. 2026-07-25 14:18 UTCEPSS rescore
  60. 2026-07-24 14:18 UTCEPSS rescore
  61. 2026-07-23 14:18 UTCEPSS rescore
  62. 2026-07-23 03:18 UTCEG score recompute▲ 2.00
  63. 2026-07-22 14:08 UTCEPSS rescore
  64. 2026-07-21 15:25 UTCEPSS rescore
  65. 2026-07-20 17:08 UTCEPSS rescore
  66. 2026-07-19 14:31 UTCEPSS rescore
  67. 2026-07-19 14:31 UTCEPSS rescore
  68. 2026-07-18 10:04 UTCEPSS rescore
  69. 2026-07-17 03:24 UTCNVD updateCVSS v3 → 9.1 · severity → CRITICAL
  70. 2026-07-16 17:03 UTCEPSS rescore
  71. 2026-07-15 16:57 UTCEPSS rescore
  72. 2026-07-14 21:36 UTCEG score recompute▲ 7.10
  73. 2026-07-14 21:35 UTCMITRE cvelistV5CVSS v3 → 7.1 · CVSS v4 → 7.1 · severity → HIGH
  74. 2026-06-30 19:31 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-48807?
CVE-2026-48807 is a critical vulnerability published on June 30, 2026. Twig is a template language for PHP. Prior to 3.27.0, the sandbox toString() checks do not fully cover Traversable values passed to join and replace filters or operands evaluated by the in and not in operators, allowing contained Stringable objects to be coerced to strings without consulting the…
When was CVE-2026-48807 disclosed?
CVE-2026-48807 was first published in the National Vulnerability Database on June 30, 2026, with the most recent update on July 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-48807 actively exploited?
CVE-2026-48807 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 69.5% of all scored CVEs.
What is the CVSS score of CVE-2026-48807?
CVE-2026-48807 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-48807?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-48807, 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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