CVE-2026-8851

HIGHNVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-05-18. NVD baseline CVSS 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: None knownExposed: 0

A fix is available — apply it.

SOGo versions 5.12.7 and prior contains a SQL injection vulnerability in the Access Control List management functionality that allows authenticated users to extract arbitrary data from the database by injecting SQL subqueries through the uid parameter of the addUserInAcls endpoint. Attackers can inject malicious SQL code to write extracted data into the sogo_acl table and retrieve it through the /acls API, establishing an out-of-band data exfiltration channel.

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity81% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
24%
KEV
Not listed

Published

May 18, 2026

Last Modified

July 23, 2026

Advisory Details (3)

Auto-updated May 19, 2026
No patch confirmed yet.
generic

SOGo < 5.12.8 SQL Injection via addUserInAcls endpoint | Advisories | VulnCheck

https://www.vulncheck.com/advisories/sogo-sql-injection-via-adduserinacls-endpoint
generic

SOGo v5.12.8 released

https://www.sogo.nu/news/2026/sogo-v5128-released.html
generic

Release SOGo v5.12.8 · Alinto/sogo · GitHub

https://github.com/Alinto/sogo/releases/tag/SOGo-5.12.8

Vendor Advisories for CVE-2026-8851(1)

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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntusogo-common (2.2.17a-1.1ubuntu0.1~esm1) @ xenial2026-08-23ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
sogo5.0.1-4 ... 5.9.1-1 (48 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
sogo5.8.0-1, 5.8.0-2+deb12u1, 5.8.0-2+deb12u25.8.0-2+deb12u3—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
sogo5.12.1-3, 5.12.1-3+deb13u15.12.1-3+deb13u2—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
sogo5.12.1-3 ... 5.12.7-1 (8 versions)5.12.8-1—

Weakness Classification(1)

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

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 6× in last 7d / 81× 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 224 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-8851?
CVE-2026-8851 is a high vulnerability published on May 18, 2026. SOGo versions 5.12.7 and prior contains a SQL injection vulnerability in the Access Control List management functionality that allows authenticated users to extract arbitrary data from the database by injecting SQL subqueries through the uid parameter of the addUserInAcls endpoint. Attackers can…
When was CVE-2026-8851 disclosed?
CVE-2026-8851 was first published in the National Vulnerability Database on May 18, 2026, with the most recent update on July 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8851 actively exploited?
CVE-2026-8851 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 76.0% of all scored CVEs.
What is the CVSS score of CVE-2026-8851?
CVE-2026-8851 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-8851?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8851, 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

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