CVE-2026-45221

HIGHPre-NVD 7.87.8—
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-01. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

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

Konga before 2.1.0 contains a privilege escalation vulnerability that allows low-privileged local attackers to execute arbitrary code by planting attacker-controlled OpenSSL configuration or library files in a hardcoded filesystem path absent from default installations. On Windows, the missing directory resides in a location writable by any authenticated local user, enabling attackers to create the directory and place malicious files that execute at the privilege level of the user or service account that launches Konga, facilitating privilege escalation.

CVSS v3
7.8
EG Score
7.8(high)
EG Risk
35(Track)
EG Risk 35/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

September 1, 2026

Last Modified

September 8, 2026

Advisory Details (3)

Auto-updated Sep 1, 2026
No patch confirmed yet.
generic

Konga < 2.1.0 Privilege Escalation via Hardcoded OpenSSL Path | Advisories | VulnCheck

https://www.vulncheck.com/advisories/konga-privilege-escalation-via-hardcoded-openssl-path
generic

Software gestionale per aziende e professionisti | Konga | Software gestionale per aziende e professionisti | Konga

https://www.easybyte.it/
generic
https://public.easybyte.it/downloads/archive/2.1.0

Vendor Advisories for CVE-2026-45221(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 24× in last 7d / 75× 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. 2026-09-20 14:54 UTCGHSA enrichment
  2. 2026-09-20 03:53 UTCGHSA enrichment
  3. 2026-09-19 16:51 UTCEG score recompute
  4. 2026-09-19 16:51 UTCGHSA enrichment
  5. 2026-09-19 05:50 UTCEG score recompute
  6. 2026-09-19 05:50 UTCGHSA enrichment
  7. 2026-09-18 19:28 UTCEPSS rescore
  8. 2026-09-18 18:45 UTCGHSA enrichment
  9. 2026-09-18 07:44 UTCGHSA enrichment
  10. 2026-09-17 20:41 UTCGHSA enrichment
  11. 2026-09-17 05:44 UTCGHSA enrichment
  12. 2026-09-16 18:39 UTCEG score recompute
  13. 2026-09-16 18:39 UTCGHSA enrichment
  14. 2026-09-16 14:08 UTCEPSS rescore
  15. 2026-09-16 05:23 UTCEG score recompute
  16. 2026-09-16 05:23 UTCGHSA enrichment
  17. 2026-09-16 05:15 UTCEPSS rescore
  18. 2026-09-15 18:21 UTCGHSA enrichment
  19. 2026-09-15 07:11 UTCEG score recompute
  20. 2026-09-15 07:11 UTCGHSA enrichment
  21. 2026-09-14 20:09 UTCGHSA enrichment
  22. 2026-09-14 09:07 UTCGHSA enrichment
  23. 2026-09-13 22:06 UTCEG score recompute
  24. 2026-09-13 22:06 UTCGHSA enrichment
  25. 2026-09-13 16:47 UTCEPSS rescore
Show 50 more
  1. 2026-09-13 11:05 UTCGHSA enrichment
  2. 2026-09-13 00:03 UTCEG score recompute
  3. 2026-09-13 00:03 UTCGHSA enrichment
  4. 2026-09-12 15:01 UTCEPSS rescore
  5. 2026-09-12 13:02 UTCGHSA enrichment
  6. 2026-09-12 02:01 UTCGHSA enrichment
  7. 2026-09-11 14:59 UTCEG score recompute
  8. 2026-09-11 14:59 UTCGHSA enrichment
  9. 2026-09-11 14:53 UTCEPSS rescore
  10. 2026-09-11 09:37 UTCEPSS rescore
  11. 2026-09-11 03:57 UTCGHSA enrichment
  12. 2026-09-10 16:56 UTCEG score recompute
  13. 2026-09-10 16:56 UTCGHSA enrichment
  14. 2026-09-10 09:34 UTCEPSS rescore
  15. 2026-09-10 05:54 UTCGHSA enrichment
  16. 2026-09-09 18:53 UTCGHSA enrichment
  17. 2026-09-09 07:51 UTCEG score recompute
  18. 2026-09-09 07:51 UTCGHSA enrichment
  19. 2026-09-08 22:00 UTCEPSS rescore
  20. 2026-09-08 20:50 UTCGHSA enrichment
  21. 2026-09-08 05:15 UTCGHSA enrichment
  22. 2026-09-07 18:10 UTCEG score recompute
  23. 2026-09-07 18:10 UTCGHSA enrichment
  24. 2026-09-07 16:01 UTCEPSS rescore
  25. 2026-09-07 07:09 UTCGHSA enrichment
  26. 2026-09-06 20:07 UTCEG score recompute
  27. 2026-09-06 20:07 UTCGHSA enrichment
  28. 2026-09-06 13:47 UTCEPSS rescore
  29. 2026-09-06 09:02 UTCGHSA enrichment
  30. 2026-09-05 22:01 UTCEG score recompute
  31. 2026-09-05 22:01 UTCGHSA enrichment
  32. 2026-09-05 10:58 UTCGHSA enrichment
  33. 2026-09-04 23:57 UTCEG score recompute
  34. 2026-09-04 23:57 UTCGHSA enrichment
  35. 2026-09-04 12:56 UTCEG score recompute
  36. 2026-09-04 12:56 UTCGHSA enrichment
  37. 2026-09-04 05:06 UTCEPSS rescore
  38. 2026-09-04 01:54 UTCGHSA enrichment
  39. 2026-09-03 14:49 UTCGHSA enrichment
  40. 2026-09-03 03:44 UTCGHSA enrichment
  41. 2026-09-02 16:39 UTCEG score recompute
  42. 2026-09-02 16:39 UTCGHSA enrichment
  43. 2026-09-02 15:53 UTCEG score recompute
  44. 2026-09-02 15:53 UTCGHSA enrichment
  45. 2026-09-02 14:12 UTCEPSS rescore
  46. 2026-09-02 07:21 UTCEG score recompute
  47. 2026-09-02 07:21 UTCGHSA enrichment
  48. 2026-09-01 20:19 UTCEG score recompute
  49. 2026-09-01 19:44 UTCEG score recompute
  50. 2026-09-01 19:44 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-45221?
CVE-2026-45221 is a high vulnerability published on September 1, 2026. Konga before 2.1.0 contains a privilege escalation vulnerability that allows low-privileged local attackers to execute arbitrary code by planting attacker-controlled OpenSSL configuration or library files in a hardcoded filesystem path absent from default installations. On Windows, the missing…
When was CVE-2026-45221 disclosed?
CVE-2026-45221 was first published in the National Vulnerability Database on September 1, 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-2026-45221 actively exploited?
CVE-2026-45221 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 97.3% of all scored CVEs.
What is the CVSS score of CVE-2026-45221?
CVE-2026-45221 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-45221?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45221, 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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