CVE-2026-86771

HIGHPre-NVD 7.67.6—
EchelonGraph scoreHIGH confidence

Score 7.6 from GitHub Security Advisory (severity: HIGH) published 2026-09-09. a secondary CVSS source baseline 7.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
7.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.6Exploit: Elevated riskExposed: 0

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

Snipe-IT versions before 8.7.0 fail to HTML-escape the employee_num field in the acceptance PDF generator, allowing attackers with users.edit permission to inject img tags into TCPDF's writeHTML() function. Attackers can craft a malicious employee_num value containing an img tag with an arbitrary HTTP(S) URL to trigger server-side requests to internal services, cloud metadata endpoints, or external targets when a victim signs an asset acceptance.

CVSS v3
7.6
EG Score
7.6(high)
EG Risk
50(Track)
EG Risk 50/100SSVC: 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
Severity76% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
9%
KEV
Not listed

Published

September 9, 2026

Last Modified

September 16, 2026

Advisory Details (2)

Auto-updated Sep 9, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

Snipe-IT before 8.7.0 Server-Side Request Forgery via employee_num | Advisories | VulnCheck

https://www.vulncheck.com/advisories/snipe-it-before-8.7.0-server-side-request-forgery-via-employee-num
github Patch Available🟡 PoC Available

SSRF in Acceptance PDF via Unescaped employee_num (TCPDF Remote Image Fetch) · Advisory · grokability/snipe-it · GitHub

https://github.com/grokability/snipe-it/security/advisories/GHSA-73xg-j94v-gjcf

Vendor Advisories for CVE-2026-86771(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 29× in last 7d / 49× 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. 2026-09-21 04:20 UTCEG score recompute
  2. 2026-09-21 04:20 UTCGHSA enrichment
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-20 16:54 UTCGHSA enrichment
  5. 2026-09-20 05:28 UTCGHSA enrichment
  6. 2026-09-19 18:02 UTCEG score recompute
  7. 2026-09-19 18:01 UTCGHSA enrichment
  8. 2026-09-19 06:34 UTCEG score recompute
  9. 2026-09-19 06:34 UTCGHSA enrichment
  10. 2026-09-18 19:28 UTCEPSS rescore
  11. 2026-09-18 19:06 UTCGHSA enrichment
  12. 2026-09-18 07:40 UTCGHSA enrichment
  13. 2026-09-17 20:14 UTCEG score recompute
  14. 2026-09-17 20:14 UTCGHSA enrichment
  15. 2026-09-17 19:32 UTCEPSS rescore
  16. 2026-09-17 08:34 UTCGHSA enrichment
  17. 2026-09-16 21:08 UTCEG score recompute
  18. 2026-09-16 21:08 UTCGHSA enrichment
  19. 2026-09-16 14:09 UTCEPSS rescore
  20. 2026-09-16 12:49 UTCEG score recompute
  21. 2026-09-16 12:49 UTCGHSA enrichment
  22. 2026-09-16 05:15 UTCEPSS rescore
  23. 2026-09-16 01:23 UTCGHSA enrichment
  24. 2026-09-15 13:57 UTCEG score recompute
  25. 2026-09-15 13:57 UTCGHSA enrichment
Show 24 more
  1. 2026-09-15 03:12 UTCEPSS rescore
  2. 2026-09-15 03:12 UTCEPSS rescore
  3. 2026-09-15 02:30 UTCGHSA enrichment
  4. 2026-09-14 15:00 UTCGHSA enrichment
  5. 2026-09-14 03:33 UTCEG score recompute
  6. 2026-09-14 03:33 UTCGHSA enrichment
  7. 2026-09-13 16:07 UTCGHSA enrichment
  8. 2026-09-13 04:41 UTCGHSA enrichment
  9. 2026-09-12 17:15 UTCEG score recompute
  10. 2026-09-12 17:15 UTCGHSA enrichment
  11. 2026-09-12 05:49 UTCGHSA enrichment
  12. 2026-09-11 18:23 UTCEG score recompute
  13. 2026-09-11 18:23 UTCGHSA enrichment
  14. 2026-09-11 14:53 UTCEPSS rescore
  15. 2026-09-11 14:53 UTCEPSS rescore
  16. 2026-09-11 06:57 UTCGHSA enrichment
  17. 2026-09-10 19:31 UTCGHSA enrichment
  18. 2026-09-10 08:05 UTCGHSA enrichment
  19. 2026-09-09 20:39 UTCEG score recompute
  20. 2026-09-09 20:39 UTCGHSA enrichment
  21. 2026-09-09 15:28 UTCEG score recompute
  22. 2026-09-09 14:20 UTCEG score recompute
  23. 2026-09-09 13:45 UTCEG score recompute
  24. 2026-09-09 13:44 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-86771?
CVE-2026-86771 is a high vulnerability published on September 9, 2026. Snipe-IT versions before 8.7.0 fail to HTML-escape the employeenum field in the acceptance PDF generator, allowing attackers with users.edit permission to inject img tags into TCPDF's writeHTML() function. Attackers can craft a malicious employeenum value containing an img tag with an arbitrary…
When was CVE-2026-86771 disclosed?
CVE-2026-86771 was first published in the National Vulnerability Database on September 9, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-86771 actively exploited?
CVE-2026-86771 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 90.6% of all scored CVEs.
What is the CVSS score of CVE-2026-86771?
CVE-2026-86771 has a CVSS v3 base score of 7.6 (NVD).
How do I remediate CVE-2026-86771?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-86771, 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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