CVE-2026-15916

MEDIUMPre-NVD 4.24.2
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 4.2 from GitHub Security Advisory published 2026-08-26. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 4.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: CISA-ADP (Vulnrichment) CVSS v3.1, EPSS, GitHub Security Advisory
Trending — 3 sources updated this week
4.2EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 4.2Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Missing Authorization vulnerability in Drupal Drupal core allows Forceful Browsing. This issue affects Drupal core versions: from 0.0.0 to 10.6.13, from 11.3.0 to 11.3.14, from 11.4.0 to 11.4.4, from 0.0.0 to 11.0.*, from 0.0.0 to 11.1.*, from 0.0.0 to 11.2.*.

CVSS v3
4.2
EG Score
4.2MEDIUMmedium confidence
EG Risk
19
EG Risk 19/100

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 (value × EchelonGraph’s weight)
Severity42% × 45%
The EG Score, 4.2 of 10.
Exploitation0.1% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.1%
EPSS %ILE
1st
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track 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). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 25, 2026

Last Modified

August 28, 2026

Advisory Details (1)

Auto-updated Aug 26, 2026
Patch available.
Web page

Drupal core - Moderately critical - Information disclosure - SA-CORE-2026-010 | Drupal.org

https://www.drupal.org/sa-core-2026-010

Vendor Advisories for CVE-2026-15916(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
drupal/core10.0.0 ... 9.5.9 (493 versions)
  • every version up to 10.6.13: fixed in 10.6.13
  • 11.3.0 up to 11.3.14: fixed in 11.3.14
  • 11.4.0 up to 11.4.4: fixed in 11.4.4
  • 11.0.0 up to 11.1.0: fixed in 11.1.0
  • 11.1.0 up to 11.2.0: fixed in 11.2.0
  • 11.2.0 up to 11.3.0: fixed in 11.3.0
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 18× in last 7d / 70× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 128 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 28 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  2. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  3. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  4. 2026-10-12 16:31 UTCEG score recompute
  5. 2026-10-11 20:09 UTCEG score recompute
  6. 2026-10-11 17:22 UTCEG score recompute
  7. 2026-10-11 14:54 UTCEG score recompute
  8. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  9. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  10. 2026-10-10 10:01 UTCEG score recompute
  11. 2026-10-10 10:01 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  12. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  13. 2026-10-09 07:21 UTCEG score recompute
  14. 2026-10-09 07:21 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  15. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  16. 2026-10-08 05:24 UTCEG score recompute
  17. 2026-10-08 05:24 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  18. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  19. 2026-10-07 03:47 UTCEG score recompute
  20. 2026-10-07 03:47 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  21. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  22. 2026-10-06 01:50 UTCEG score recompute
  23. 2026-10-06 01:50 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  24. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  25. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.1% · 1st percentile
Show 75 more
  1. 2026-10-04 19:44 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  2. 2026-10-03 16:16 UTCEG score recompute
  3. 2026-10-03 16:16 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  4. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  5. 2026-10-02 09:33 UTCEG score recompute
  6. 2026-10-02 09:33 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  7. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  8. 2026-10-01 07:57 UTCEG score recompute
  9. 2026-10-01 07:57 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  10. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  11. 2026-09-30 06:20 UTCEG score recompute
  12. 2026-09-30 06:20 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  13. 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  14. 2026-09-29 01:29 UTCEG score recompute
  15. 2026-09-29 01:29 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  16. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  17. 2026-09-27 23:08 UTCEG score recompute
  18. 2026-09-27 23:08 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  19. 2026-09-27 13:47 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  20. 2026-09-26 21:31 UTCEG score recompute
  21. 2026-09-26 21:31 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  22. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  23. 2026-09-25 12:01 UTCEG score recompute
  24. 2026-09-25 12:01 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  25. 2026-09-24 10:24 UTCEG score recompute
  26. 2026-09-24 10:24 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  27. 2026-09-23 08:47 UTCEG score recompute
  28. 2026-09-23 08:47 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  29. 2026-09-22 07:11 UTCEG score recompute
  30. 2026-09-22 07:11 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  31. 2026-09-21 05:33 UTCEG score recompute
  32. 2026-09-21 05:33 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  33. 2026-09-20 03:31 UTCEG score recompute
  34. 2026-09-20 03:30 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  35. 2026-09-19 01:53 UTCEG score recompute
  36. 2026-09-19 01:53 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  37. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  38. 2026-09-18 00:16 UTCEG score recompute
  39. 2026-09-18 00:16 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  40. 2026-09-16 22:39 UTCEG score recompute
  41. 2026-09-16 22:39 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  42. 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  43. 2026-09-16 05:14 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  44. 2026-09-15 21:00 UTCEG score recompute
  45. 2026-09-15 21:00 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  46. 2026-09-14 18:55 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  47. 2026-09-13 16:48 UTCEG score recompute
  48. 2026-09-13 16:48 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  49. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  50. 2026-09-12 15:11 UTCEG score recompute
  51. 2026-09-12 15:11 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  52. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  53. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  54. 2026-09-11 13:34 UTCEG score recompute
  55. 2026-09-11 13:34 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  56. 2026-09-11 09:36 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  57. 2026-09-10 11:57 UTCEG score recompute
  58. 2026-09-10 11:57 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  59. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  60. 2026-09-09 09:48 UTCEG score recompute
  61. 2026-09-09 09:48 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  62. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  63. 2026-09-08 08:11 UTCEG score recompute
  64. 2026-09-08 08:11 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  65. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  66. 2026-09-07 06:35 UTCEG score recompute
  67. 2026-09-07 06:34 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  68. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  69. 2026-09-06 04:54 UTCEG score recompute
  70. 2026-09-06 04:54 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  71. 2026-09-05 03:17 UTCEG score recompute
  72. 2026-09-05 03:17 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  73. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  74. 2026-09-04 01:40 UTCGHSA enrichmentGHSA-jw5p-wr38-7rv7 · GitHub CVSS 4.2
  75. 2026-09-03 00:03 UTCEG score recompute

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-15916?
CVE-2026-15916 is a medium-severity vulnerability; its CVE record was published on August 25, 2026. Missing Authorization vulnerability in Drupal Drupal core allows Forceful Browsing. This issue affects Drupal core versions: from 0.0.0 to 10.6.13, from 11.3.0 to 11.3.14, from 11.4.0 to 11.4.4, from 0.0.0 to 11.0., from 0.0.0 to 11.1., from 0.0.0 to 11.2.*.
When was CVE-2026-15916 made public?
CVE-2026-15916 was made public on July 15, 2026: that is the date its CVE record's CNA, Drupal.org, gives for when the vulnerability was made public. The CVE record itself was published on August 25, 2026. EchelonGraph's copy of the record carries a last-modified date of August 28, 2026; the record at its source may have been updated since.
Is CVE-2026-15916 actively exploited?
CVE-2026-15916 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (1st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-15916?
CVE-2026-15916 has a CVSS v3.1 base score of 4.2 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-15916?
A fix for CVE-2026-15916 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-15916 are linked in the Vendor Advisories panel on this page.

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