CVE-2026-72782

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-11. A secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 6.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Craft CMS versions >= 5.0.0-RC1 before 5.10.6 and >= 4.0.0-RC1 before 4.18.2 interpolate environment variables and secrets (via ${ENV_VAR} strings in the elementId parameter) into Twig templates before rendering, even when the Twig sandbox is enabled. An authenticated attacker with control panel access can render a malicious sandboxed Twig template and, using a blind error-based technique across many requests, incrementally leak arbitrary environment variables and secrets. These can be abused to forge sessions (via CRAFT_SECURITY_KEY), escalate privileges, and steal database, SMTP, API, or blob storage credentials. Fixed in 5.10.6 and 4.18.2.

CVSS v3
6.5
EG Score
6.5MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100CISA SSVC

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%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
30th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 11, 2026

Last Modified

October 8, 2026

Advisory Details (2)

Auto-updated Aug 11, 2026
Patch available. Sources: github.
generic

Craft CMS 5.0.0-RC1 before 5.10.6 Environment Variable Leak | Advisories | VulnCheck

https://www.vulncheck.com/advisories/craft-cms-rc1-before-environment-variable-leak
githubMentions a patch (unverified)

Authenticated leak of secret environment variables · Advisory · craftcms/cms · GitHub

https://github.com/craftcms/cms/security/advisories/GHSA-596p-6jv8-775v

Vendor Advisories for CVE-2026-72782(1)

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

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFix by version rangeDependents
craftcms/cms4.0.0 ... 4.9.7 (252 versions)
  • 5.0.0-RC1 up to 5.10.6: fixed in 5.10.6
  • 4.0.0-RC1 up to 4.18.2: fixed in 4.18.2
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× 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.

Showing the most recent 100 of 126 total refreshes for this CVE.

  1. 2026-10-09 20:07 UTCEPSS rescore
  2. 2026-10-08 17:13 UTCEPSS rescore
  3. 2026-10-08 16:37 UTCEG score recompute
  4. 2026-10-08 15:44 UTCEG score recompute
  5. 2026-10-07 23:48 UTCEPSS rescore
  6. 2026-10-06 19:30 UTCEG score recompute
  7. 2026-10-06 15:18 UTCEPSS rescore
  8. 2026-10-05 20:51 UTCEG score recompute
  9. 2026-10-05 17:43 UTCEPSS rescore
  10. 2026-10-04 23:22 UTCEPSS rescore
  11. 2026-10-03 21:25 UTCEG score recompute
  12. 2026-10-03 14:26 UTCEPSS rescore
  13. 2026-10-02 08:44 UTCEG score recompute
  14. 2026-10-01 19:50 UTCEPSS rescore
  15. 2026-09-30 22:19 UTCEG score recompute
  16. 2026-09-29 07:20 UTCEG score recompute
  17. 2026-09-28 13:52 UTCEPSS rescore
  18. 2026-09-28 09:06 UTCEG score recompute
  19. 2026-09-27 13:48 UTCEPSS rescore
  20. 2026-09-27 11:01 UTCEG score recompute
  21. 2026-09-26 15:59 UTCEPSS rescore
  22. 2026-09-25 03:56 UTCEG score recompute
  23. 2026-09-23 21:04 UTCEG score recompute
  24. 2026-09-23 17:54 UTCEPSS rescore
  25. 2026-09-22 21:14 UTCEG score recompute
Show 75 more
  1. 2026-09-21 21:13 UTCEG score recompute
  2. 2026-09-21 21:09 UTCEPSS rescore
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-19 21:19 UTCEG score recompute
  5. 2026-09-18 22:52 UTCEG score recompute
  6. 2026-09-18 19:28 UTCEPSS rescore
  7. 2026-09-18 00:47 UTCEG score recompute
  8. 2026-09-17 00:35 UTCEG score recompute
  9. 2026-09-16 14:08 UTCEPSS rescore
  10. 2026-09-16 05:15 UTCEPSS rescore
  11. 2026-09-16 02:15 UTCEG score recompute
  12. 2026-09-15 03:12 UTCEPSS rescore
  13. 2026-09-13 20:12 UTCEG score recompute
  14. 2026-09-12 22:07 UTCEG score recompute
  15. 2026-09-12 15:02 UTCEPSS rescore
  16. 2026-09-11 23:59 UTCEG score recompute
  17. 2026-09-11 14:53 UTCEPSS rescore
  18. 2026-09-11 01:53 UTCEG score recompute
  19. 2026-09-10 09:35 UTCEPSS rescore
  20. 2026-09-09 05:43 UTCEG score recompute
  21. 2026-09-08 22:01 UTCEPSS rescore
  22. 2026-09-07 20:03 UTCEG score recompute
  23. 2026-09-06 21:58 UTCEG score recompute
  24. 2026-09-06 13:48 UTCEPSS rescore
  25. 2026-09-05 23:49 UTCEG score recompute
  26. 2026-09-05 01:44 UTCEG score recompute
  27. 2026-09-04 05:07 UTCEPSS rescore
  28. 2026-09-03 01:29 UTCEG score recompute
  29. 2026-09-02 14:12 UTCEPSS rescore
  30. 2026-09-01 20:28 UTCEG score recompute
  31. 2026-09-01 20:28 UTCGHSA enrichment
  32. 2026-09-01 13:54 UTCEPSS rescore
  33. 2026-09-01 04:40 UTCEPSS rescore
  34. 2026-09-01 04:40 UTCEPSS rescore
  35. 2026-08-31 21:56 UTCEG score recompute
  36. 2026-08-31 21:56 UTCGHSA enrichment
  37. 2026-08-30 19:18 UTCEPSS rescore
  38. 2026-08-30 19:17 UTCEPSS rescore
  39. 2026-08-30 18:56 UTCEG score recompute
  40. 2026-08-30 18:56 UTCGHSA enrichment
  41. 2026-08-30 01:22 UTCEPSS rescore
  42. 2026-08-29 20:51 UTCEG score recompute
  43. 2026-08-29 20:51 UTCGHSA enrichment
  44. 2026-08-28 21:42 UTCEPSS rescore
  45. 2026-08-28 18:55 UTCGHSA enrichment
  46. 2026-08-28 11:13 UTCEG score recompute
  47. 2026-08-28 11:13 UTCGHSA enrichment
  48. 2026-08-27 14:25 UTCEPSS rescore
  49. 2026-08-27 10:14 UTCEG score recompute
  50. 2026-08-27 10:14 UTCGHSA enrichment
  51. 2026-08-26 14:47 UTCEPSS rescore
  52. 2026-08-26 12:09 UTCGHSA enrichment
  53. 2026-08-25 14:03 UTCEG score recompute
  54. 2026-08-25 14:03 UTCGHSA enrichment
  55. 2026-08-25 13:49 UTCEPSS rescore
  56. 2026-08-24 15:57 UTCEG score recompute
  57. 2026-08-24 15:57 UTCGHSA enrichment
  58. 2026-08-23 17:52 UTCEG score recompute
  59. 2026-08-23 17:52 UTCGHSA enrichment
  60. 2026-08-23 00:19 UTCEPSS rescore
  61. 2026-08-22 19:48 UTCEG score recompute
  62. 2026-08-22 19:48 UTCGHSA enrichment
  63. 2026-08-21 23:49 UTCEPSS rescore
  64. 2026-08-21 21:43 UTCGHSA enrichment
  65. 2026-08-20 23:38 UTCEG score recompute
  66. 2026-08-20 23:38 UTCGHSA enrichment
  67. 2026-08-20 22:56 UTCEPSS rescore
  68. 2026-08-20 01:34 UTCEG score recompute
  69. 2026-08-20 01:34 UTCGHSA enrichment
  70. 2026-08-19 17:04 UTCEPSS rescore
  71. 2026-08-19 03:28 UTCEG score recompute
  72. 2026-08-19 03:28 UTCGHSA enrichment
  73. 2026-08-18 13:49 UTCEPSS rescore
  74. 2026-08-18 13:49 UTCEPSS rescore
  75. 2026-08-18 05:22 UTCEG score recompute

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Frequently asked(5)

What is CVE-2026-72782?
CVE-2026-72782 is a medium vulnerability published on August 11, 2026. Craft CMS versions >= 5.0.0-RC1 before 5.10.6 and >= 4.0.0-RC1 before 4.18.2 interpolate environment variables and secrets (via ${ENVVAR} strings in the elementId parameter) into Twig templates before rendering, even when the Twig sandbox is enabled. An authenticated attacker with control panel…
When was CVE-2026-72782 disclosed?
CVE-2026-72782 was first published on August 11, 2026, with the most recent update on October 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-72782 actively exploited?
CVE-2026-72782 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (30th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-72782?
CVE-2026-72782 has a CVSS base score of 6.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-72782?
A fix for CVE-2026-72782 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-72782 are linked in the Vendor Advisories panel on this page.

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