CVE-2026-12862

MEDIUMPre-NVD 5.15.1—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 87% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
5.1
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.1Exploit: NoneExposed: 0

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

Untrusted user data was passed verbatim to Excel exports for administrators. This allowed formula injection which can be used to compromise the environment of the user loading the file or other data in the file.

CVSS v3
5.1
EG Score
5.1(medium)
EPSS
13.2%
KEV
Not listed

Published

June 22, 2026

Last Modified

June 23, 2026

Advisory Details (1)

Auto-updated Jun 23, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

Improper Neutralization of Input Leaders in venueless/venueless · Advisory · venueless/venueless · GitHub

https://github.com/venueless/venueless/security/advisories/GHSA-5hw3-655h-7m86

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 16× in last 7d / 42× 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. 2026-07-11 08:27 UTCEPSS rescore
  2. 2026-07-10 19:35 UTCEG score recompute
  3. 2026-07-09 21:04 UTCEG score recompute
  4. 2026-07-09 19:10 UTCEPSS rescore
  5. 2026-07-08 22:34 UTCEG score recompute
  6. 2026-07-08 15:15 UTCEPSS rescore
  7. 2026-07-08 15:15 UTCEPSS rescore
  8. 2026-07-08 00:05 UTCEG score recompute
  9. 2026-07-07 13:46 UTCEPSS rescore
  10. 2026-07-07 01:35 UTCEG score recompute
  11. 2026-07-06 16:27 UTCEPSS rescore
  12. 2026-07-06 03:04 UTCEG score recompute
  13. 2026-07-06 02:23 UTCEPSS rescore
  14. 2026-07-05 04:32 UTCEG score recompute
  15. 2026-07-05 02:30 UTCEPSS rescore
  16. 2026-07-05 02:30 UTCEPSS rescore
  17. 2026-07-04 06:31 UTCEPSS rescore
  18. 2026-07-04 06:01 UTCEG score recompute
  19. 2026-07-03 07:18 UTCEG score recompute
  20. 2026-07-02 08:49 UTCEG score recompute
  21. 2026-07-01 15:06 UTCEPSS rescore
  22. 2026-07-01 15:06 UTCEPSS rescore
  23. 2026-07-01 10:19 UTCEG score recompute
  24. 2026-06-30 23:22 UTCEPSS rescore
  25. 2026-06-30 11:50 UTCEG score recompute
Show 17 more
  1. 2026-06-29 14:06 UTCEPSS rescore
  2. 2026-06-29 13:18 UTCEG score recompute
  3. 2026-06-28 14:49 UTCEG score recompute
  4. 2026-06-28 14:07 UTCEPSS rescore
  5. 2026-06-28 04:56 UTCEPSS rescore
  6. 2026-06-28 04:56 UTCEPSS rescore
  7. 2026-06-27 16:20 UTCEG score recompute
  8. 2026-06-27 03:08 UTCEPSS rescore
  9. 2026-06-26 17:51 UTCEG score recompute
  10. 2026-06-25 19:21 UTCEG score recompute
  11. 2026-06-25 13:49 UTCEPSS rescore
  12. 2026-06-24 20:51 UTCEG score recompute
  13. 2026-06-24 14:05 UTCEPSS rescore
  14. 2026-06-23 22:22 UTCEG score recompute
  15. 2026-06-23 21:32 UTCEPSS rescore
  16. 2026-06-22 23:50 UTCEG score recompute
  17. 2026-06-22 23:50 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-12862?
CVE-2026-12862 is a medium vulnerability published on June 22, 2026. Untrusted user data was passed verbatim to Excel exports for administrators. This allowed formula injection which can be used to compromise the environment of the user loading the file or other data in the file.
When was CVE-2026-12862 disclosed?
CVE-2026-12862 was first published in the National Vulnerability Database on June 22, 2026, with the most recent update on June 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-12862 actively exploited?
CVE-2026-12862 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 13.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-12862?
CVE-2026-12862 has a CVSS v3 base score of 5.1 (NVD).
How do I remediate CVE-2026-12862?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-12862, 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.

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