CVE-2026-56706

MEDIUMPre-NVD 6.86.8—
EchelonGraph scoreMEDIUM confidence

Score 6.8 from GitHub Security Advisory published 2026-08-25. A secondary CVSS source baseline 6.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
6.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 6.8Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

Adminer before 5.4.3 uses a CSRF token scheme that transmits both the XOR mask and the masked value in every token (format (rand XOR secret):rand), allowing anyone who observes a single CSRF token (e.g., via network sniffing, log files, Referrer header, or XSS) to recover the session secret with a single XOR operation and forge unlimited valid tokens. The implementation is further weakened by a low-entropy session token (rand(1,1e6), ~20 bits) that permits blind brute-force, and by use of loose comparison (==) in token verification, enabling PHP type juggling. Exploitation enables cross-site request forgery against authenticated sessions, including execution of arbitrary SQL queries.

CVSS v3
6.8
EG Score
6.8MEDIUMmedium confidence
EG Risk
47
EG Risk 47/100CISA 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
Severity68% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
33rd
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

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

Exploitation public PoC (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 25, 2026

Last Modified

September 8, 2026

Advisory Details (2)

Auto-updated Aug 25, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

Adminer before 5.4.3 CSRF Token Secret Recovery via XOR Masking | Advisories | VulnCheck

https://www.vulncheck.com/advisories/adminer-before-csrf-token-secret-recovery-via-xor-masking
githubMentions a patch (unverified)🟡 PoC Available

CSRF Token Secret Recoverable from Single Observed Token, Enabling Cross-Site Request Forgery · Advisory · vrana/adminer · GitHub

https://github.com/vrana/adminer/security/advisories/GHSA-33j4-hc95-pggg

Vendor Advisories for CVE-2026-56706(1)

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

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
adminer4.8.1-1 ... 6.1.0-1 (15 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
adminer5.2.1+dfsg-1 ... 6.1.0-1 (11 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
adminer5.2.1+dfsg-1, 5.3.0+dfsg-1, 5.4.0+dfsg-1, 5.4.1+dfsg-1, 5.4.2+dfsg-1
  • every version up to 5.4.3+dfsg-1: fixed in 5.4.3+dfsg-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 17× in last 7d / 77× 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 125 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-56706?
CVE-2026-56706 is a medium vulnerability published on August 25, 2026. Adminer before 5.4.3 uses a CSRF token scheme that transmits both the XOR mask and the masked value in every token (format (rand XOR secret):rand), allowing anyone who observes a single CSRF token (e.g., via network sniffing, log files, Referrer header, or XSS) to recover the session secret with a…
When was CVE-2026-56706 disclosed?
CVE-2026-56706 was first published on August 25, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-56706 actively exploited?
CVE-2026-56706 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (33rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-56706?
CVE-2026-56706 has a CVSS base score of 6.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-56706?
A fix for CVE-2026-56706 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-56706 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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