CVE-2026-71250

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH confidence

Score 4.3 from GitHub Security Advisory published 2026-08-05. a secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: None knownExposed: 0

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

Firefly III's webhook URL validator (IsValidWebhookUrl.php) filters most private/reserved IPv4 ranges but contains an explicit early-return that allows any resolved address in 127.0.0.0/8, permitting an authenticated user (with webhooks enabled, which is off by default) to configure a webhook targeting loopback services on the server.

CVSS v3
4.3
EG Score
4.3(high)
EG Risk
19(Track)
EG Risk 19/100SSVC: 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
Severity43% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
12%
KEV
Not listed

Published

August 5, 2026

Last Modified

August 10, 2026

Advisory Details (1)

Auto-updated Aug 5, 2026
No patch confirmed yet.
generic

GitHub - firefly-iii/firefly-iii: Firefly III: a personal finances manager · GitHub

https://github.com/firefly-iii/firefly-iii

Vendor Advisories for CVE-2026-71250(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 22× in last 7d / 52× 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. 2026-08-20 22:56 UTCEPSS rescore
  2. 2026-08-20 22:13 UTCGHSA enrichment
  3. 2026-08-19 21:27 UTCEG score recompute
  4. 2026-08-19 21:27 UTCGHSA enrichment
  5. 2026-08-19 17:04 UTCEPSS rescore
  6. 2026-08-18 20:21 UTCEG score recompute
  7. 2026-08-18 20:20 UTCGHSA enrichment
  8. 2026-08-18 13:49 UTCEPSS rescore
  9. 2026-08-18 13:49 UTCEPSS rescore
  10. 2026-08-17 19:32 UTCEG score recompute
  11. 2026-08-17 19:32 UTCGHSA enrichment
  12. 2026-08-17 13:47 UTCEPSS rescore
  13. 2026-08-16 16:59 UTCEG score recompute
  14. 2026-08-16 16:59 UTCGHSA enrichment
  15. 2026-08-16 14:56 UTCEPSS rescore
  16. 2026-08-16 14:56 UTCEPSS rescore
  17. 2026-08-16 02:15 UTCEPSS rescore
  18. 2026-08-15 16:13 UTCEG score recompute
  19. 2026-08-15 16:13 UTCGHSA enrichment
  20. 2026-08-15 01:31 UTCEPSS rescore
  21. 2026-08-14 15:27 UTCEG score recompute
  22. 2026-08-14 15:27 UTCGHSA enrichment
  23. 2026-08-13 22:00 UTCEPSS rescore
  24. 2026-08-13 14:41 UTCGHSA enrichment
  25. 2026-08-12 13:56 UTCEG score recompute
Show 27 more
  1. 2026-08-12 13:56 UTCGHSA enrichment
  2. 2026-08-12 13:51 UTCEPSS rescore
  3. 2026-08-11 13:10 UTCEG score recompute
  4. 2026-08-11 13:10 UTCGHSA enrichment
  5. 2026-08-11 00:00 UTCEPSS rescore
  6. 2026-08-10 12:24 UTCEG score recompute
  7. 2026-08-10 12:24 UTCGHSA enrichment
  8. 2026-08-10 12:02 UTCGHSA enrichment
  9. 2026-08-10 11:22 UTCEG score recompute
  10. 2026-08-10 11:22 UTCGHSA enrichment
  11. 2026-08-09 16:30 UTCEG score recompute
  12. 2026-08-09 16:30 UTCGHSA enrichment
  13. 2026-08-09 13:47 UTCEPSS rescore
  14. 2026-08-08 16:37 UTCEPSS rescore
  15. 2026-08-08 15:45 UTCEG score recompute
  16. 2026-08-08 15:45 UTCGHSA enrichment
  17. 2026-08-07 14:59 UTCGHSA enrichment
  18. 2026-08-06 14:14 UTCEG score recompute
  19. 2026-08-06 14:14 UTCGHSA enrichment
  20. 2026-08-06 13:47 UTCEPSS rescore
  21. 2026-08-05 13:28 UTCEG score recompute
  22. 2026-08-05 13:28 UTCGHSA enrichment
  23. 2026-08-05 13:08 UTCEG score recompute
  24. 2026-08-05 13:08 UTCGHSA enrichment
  25. 2026-08-05 11:26 UTCEG score recompute
  26. 2026-08-05 11:06 UTCEG score recompute
  27. 2026-08-05 11:05 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-71250?
CVE-2026-71250 is a medium vulnerability published on August 5, 2026. Firefly III's webhook URL validator (IsValidWebhookUrl.php) filters most private/reserved IPv4 ranges but contains an explicit early-return that allows any resolved address in 127.0.0.0/8, permitting an authenticated user (with webhooks enabled, which is off by default) to configure a webhook…
When was CVE-2026-71250 disclosed?
CVE-2026-71250 was first published in the National Vulnerability Database on August 5, 2026, with the most recent update on August 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-71250 actively exploited?
CVE-2026-71250 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 87.6% of all scored CVEs.
What is the CVSS score of CVE-2026-71250?
CVE-2026-71250 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-71250?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-71250, 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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