CVE-2026-56706

MEDIUMPre-NVD 6.86.8—
EchelonGraph scoreHIGH 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%CVSS: 6.8Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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
6.8(high)
EG Risk
47(Track)
EG Risk 47/100SSVC: 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
Severity68% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
22%
KEV
Not listed

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
github Patch Available🟡 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 rangeFixed inDependents
adminer4.8.1-1 ... 6.0.1-1 (13 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
adminer5.2.1+dfsg-1 ... 6.0.1-1 (9 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
adminer5.2.1+dfsg-1, 5.3.0+dfsg-1, 5.4.0+dfsg-1, 5.4.1+dfsg-1, 5.4.2+dfsg-15.4.3+dfsg-1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 20× in last 7d / 73× 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. 2026-09-19 13:39 UTCEG score recompute
  2. 2026-09-19 13:39 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 12:18 UTCEG score recompute
  5. 2026-09-18 12:18 UTCGHSA enrichment
  6. 2026-09-17 19:31 UTCEPSS rescore
  7. 2026-09-17 10:52 UTCEG score recompute
  8. 2026-09-17 10:52 UTCGHSA enrichment
  9. 2026-09-16 14:08 UTCEPSS rescore
  10. 2026-09-16 09:26 UTCEG score recompute
  11. 2026-09-16 09:26 UTCGHSA enrichment
  12. 2026-09-16 05:15 UTCEPSS rescore
  13. 2026-09-15 07:09 UTCEG score recompute
  14. 2026-09-15 07:09 UTCGHSA enrichment
  15. 2026-09-15 03:11 UTCEPSS rescore
  16. 2026-09-14 05:47 UTCEG score recompute
  17. 2026-09-14 05:47 UTCGHSA enrichment
  18. 2026-09-13 16:47 UTCEPSS rescore
  19. 2026-09-13 04:26 UTCEG score recompute
  20. 2026-09-13 04:26 UTCGHSA enrichment
  21. 2026-09-12 03:04 UTCEG score recompute
  22. 2026-09-12 03:04 UTCGHSA enrichment
  23. 2026-09-11 14:53 UTCEPSS rescore
  24. 2026-09-11 01:42 UTCEG score recompute
  25. 2026-09-11 01:42 UTCGHSA enrichment
Show 48 more
  1. 2026-09-10 09:35 UTCEPSS rescore
  2. 2026-09-10 00:21 UTCEG score recompute
  3. 2026-09-10 00:21 UTCGHSA enrichment
  4. 2026-09-08 22:01 UTCEPSS rescore
  5. 2026-09-08 20:52 UTCEG score recompute
  6. 2026-09-08 20:52 UTCGHSA enrichment
  7. 2026-09-07 16:01 UTCEPSS rescore
  8. 2026-09-07 15:19 UTCEG score recompute
  9. 2026-09-07 15:19 UTCGHSA enrichment
  10. 2026-09-06 13:47 UTCEPSS rescore
  11. 2026-09-06 11:29 UTCEG score recompute
  12. 2026-09-06 11:29 UTCGHSA enrichment
  13. 2026-09-05 10:08 UTCEG score recompute
  14. 2026-09-05 10:08 UTCGHSA enrichment
  15. 2026-09-04 08:46 UTCEG score recompute
  16. 2026-09-04 08:46 UTCGHSA enrichment
  17. 2026-09-04 05:07 UTCEPSS rescore
  18. 2026-09-03 07:23 UTCEG score recompute
  19. 2026-09-03 07:23 UTCGHSA enrichment
  20. 2026-09-02 14:12 UTCEPSS rescore
  21. 2026-09-02 05:57 UTCEG score recompute
  22. 2026-09-02 05:57 UTCGHSA enrichment
  23. 2026-09-01 13:54 UTCEPSS rescore
  24. 2026-09-01 04:40 UTCEPSS rescore
  25. 2026-09-01 04:27 UTCGHSA enrichment
  26. 2026-08-31 03:02 UTCEG score recompute
  27. 2026-08-31 03:01 UTCGHSA enrichment
  28. 2026-08-30 19:17 UTCEPSS rescore
  29. 2026-08-30 01:40 UTCEG score recompute
  30. 2026-08-30 01:40 UTCGHSA enrichment
  31. 2026-08-30 01:22 UTCEPSS rescore
  32. 2026-08-29 00:19 UTCEG score recompute
  33. 2026-08-29 00:18 UTCGHSA enrichment
  34. 2026-08-28 21:42 UTCEPSS rescore
  35. 2026-08-27 19:11 UTCEG score recompute
  36. 2026-08-27 19:11 UTCGHSA enrichment
  37. 2026-08-27 14:25 UTCEPSS rescore
  38. 2026-08-26 17:47 UTCEG score recompute
  39. 2026-08-26 17:47 UTCGHSA enrichment
  40. 2026-08-26 14:46 UTCEPSS rescore
  41. 2026-08-25 16:24 UTCEG score recompute
  42. 2026-08-25 16:24 UTCGHSA enrichment
  43. 2026-08-25 15:50 UTCEG score recompute
  44. 2026-08-25 15:50 UTCGHSA enrichment
  45. 2026-08-25 13:49 UTCEPSS rescore
  46. 2026-08-25 02:19 UTCEG score recompute
  47. 2026-08-25 01:50 UTCEG score recompute
  48. 2026-08-25 01:50 UTCMITRE cvelistV5first tracked

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 in the National Vulnerability Database 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% probability of exploitation in the next 30 days, which ranks it in the top 77.8% of all scored CVEs.
What is the CVSS score of CVE-2026-56706?
CVE-2026-56706 has a CVSS v3 base score of 6.8 (NVD).
How do I remediate CVE-2026-56706?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-56706, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-56706

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