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 69% 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: 0.4%CVSS: 9.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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
9.1CRITICALmedium confidence
EG Risk
41
EG Risk 41/100

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%
EPSS PROB
0.4%
EPSS %ILE
28th
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.
githubMentions a patch (unverified)

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 rangeFix by version rangeDependents
php-twig3.20.0-2 ... 3.26.0-1 (15 versions)
  • every version up to 3.27.0-1: fixed in 3.27.0-1
—
Packagist(1)
PackageVulnerable rangeFix by version rangeDependents
twig/twig1.3.0 ... v3.9.3 (243 versions)
  • every version up to 3.27.0: fixed in 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 / 24× 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.

Showing the most recent 100 of 115 total refreshes for this CVE.

  1. 2026-10-09 20:07 UTCEPSS rescore
  2. 2026-10-08 17:12 UTCEPSS rescore
  3. 2026-10-07 23:48 UTCEPSS rescore
  4. 2026-10-06 15:18 UTCEPSS rescore
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  15. 2026-09-23 07:19 UTCEG score recompute
  16. 2026-09-20 20:16 UTCEPSS rescore
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  18. 2026-09-18 06:48 UTCEG score recompute
  19. 2026-09-16 14:08 UTCEPSS rescore
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  22. 2026-09-13 16:47 UTCEPSS rescore
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  24. 2026-09-11 14:53 UTCEPSS rescore
  25. 2026-09-10 09:35 UTCEPSS rescore
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  1. 2026-09-08 22:01 UTCEPSS rescore
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  3. 2026-09-06 14:35 UTCEG score recompute
  4. 2026-09-06 13:47 UTCEPSS rescore
  5. 2026-09-04 05:06 UTCEPSS rescore
  6. 2026-09-02 14:12 UTCEPSS rescore
  7. 2026-09-01 13:54 UTCEPSS rescore
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  9. 2026-08-30 22:23 UTCEG score recompute
  10. 2026-08-30 19:17 UTCEPSS rescore
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  13. 2026-08-28 21:41 UTCEPSS rescore
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  15. 2026-08-27 14:25 UTCEPSS rescore
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  18. 2026-08-24 21:08 UTCEG score recompute
  19. 2026-08-24 11:39 UTCEG score recompute
  20. 2026-08-23 00:47 UTCEG score recompute
  21. 2026-08-23 00:19 UTCEPSS rescore
  22. 2026-08-22 01:31 UTCEG score recompute
  23. 2026-08-21 23:49 UTCEPSS rescore
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  25. 2026-08-20 22:55 UTCEPSS rescore
  26. 2026-08-20 05:30 UTCEG score recompute
  27. 2026-08-19 17:04 UTCEPSS rescore
  28. 2026-08-18 23:00 UTCEG score recompute
  29. 2026-08-18 13:48 UTCEPSS rescore
  30. 2026-08-18 00:01 UTCEG score recompute
  31. 2026-08-17 13:47 UTCEPSS rescore
  32. 2026-08-16 16:48 UTCEG score recompute
  33. 2026-08-16 14:56 UTCEPSS rescore
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  35. 2026-08-16 02:14 UTCEPSS rescore
  36. 2026-08-15 02:55 UTCEG score recompute
  37. 2026-08-15 01:30 UTCEPSS rescore
  38. 2026-08-13 22:18 UTCEG score recompute
  39. 2026-08-13 22:00 UTCEPSS rescore
  40. 2026-08-12 16:09 UTCEG score recompute
  41. 2026-08-12 13:51 UTCEPSS rescore
  42. 2026-08-11 15:37 UTCEG score recompute
  43. 2026-08-11 03:22 UTCEG score recompute
  44. 2026-08-11 00:00 UTCEPSS rescore
  45. 2026-08-09 14:36 UTCEG score recompute
  46. 2026-08-09 13:46 UTCEPSS rescore
  47. 2026-08-08 18:11 UTCEG score recompute
  48. 2026-08-08 16:37 UTCEPSS rescore
  49. 2026-08-07 17:40 UTCEG score recompute
  50. 2026-08-06 17:09 UTCEG score recompute
  51. 2026-08-06 13:47 UTCEPSS rescore
  52. 2026-08-05 20:43 UTCEG score recompute
  53. 2026-08-05 19:17 UTCEPSS rescore
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  55. 2026-08-04 15:10 UTCEPSS rescore
  56. 2026-08-04 14:42 UTCEG score recompute
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  59. 2026-08-03 10:36 UTCEPSS rescore
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  61. 2026-08-02 02:27 UTCEPSS rescore
  62. 2026-08-01 04:23 UTCEG score recompute
  63. 2026-08-01 04:16 UTCEPSS rescore
  64. 2026-07-30 17:20 UTCEG score recompute
  65. 2026-07-30 16:28 UTCEPSS rescore
  66. 2026-07-30 13:11 UTCEG score recompute
  67. 2026-07-30 02:27 UTCEG score recompute
  68. 2026-07-30 01:30 UTCEPSS rescore
  69. 2026-07-28 19:10 UTCEG score recompute
  70. 2026-07-28 15:37 UTCEPSS rescore
  71. 2026-07-27 16:50 UTCEG score recompute
  72. 2026-07-26 18:37 UTCEG score recompute
  73. 2026-07-26 14:54 UTCEPSS rescore
  74. 2026-07-26 13:51 UTCEG score recompute
  75. 2026-07-25 14:18 UTCEPSS rescore

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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 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 0.4% probability of exploitation in the next 30 days (28th percentile of EPSS-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?
A fix for CVE-2026-48807 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-48807 are linked in the Vendor Advisories panel on this page.

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