CVE-2026-18806

HIGHPre-NVD 7.17.1—
EchelonGraph scoreHIGH confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-08-04. a secondary CVSS source baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0

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

External control of file name or path vulnerability in TÜBİTAK BİLGEM Software Technologies Research Institute pardus-image-writer allows Removing Important Client Functionality.

This issue affects pardus-image-writer: before 0.9.0.

CVSS v3
7.1
EG Score
7.1(high)
EG Risk
32(Track)
EG Risk 32/100SSVC: 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
Severity71% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
1%
KEV
Not listed

Published

August 4, 2026

Last Modified

August 10, 2026

Advisory Details (1)

Auto-updated Aug 4, 2026
No patch confirmed yet.
generic

T.C. Siber Güvenlik Başkanlığı

https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0740

Vendor Advisories for CVE-2026-18806(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 27× in last 7d / 66× 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. 2026-08-21 00:43 UTCEG score recompute
  2. 2026-08-21 00:43 UTCGHSA enrichment
  3. 2026-08-20 22:55 UTCEPSS rescore
  4. 2026-08-20 12:07 UTCGHSA enrichment
  5. 2026-08-19 23:28 UTCEG score recompute
  6. 2026-08-19 23:28 UTCGHSA enrichment
  7. 2026-08-19 17:03 UTCEPSS rescore
  8. 2026-08-19 10:51 UTCGHSA enrichment
  9. 2026-08-18 22:15 UTCGHSA enrichment
  10. 2026-08-18 09:35 UTCGHSA enrichment
  11. 2026-08-17 20:59 UTCEG score recompute
  12. 2026-08-17 20:59 UTCGHSA enrichment
  13. 2026-08-17 13:47 UTCEPSS rescore
  14. 2026-08-17 08:23 UTCGHSA enrichment
  15. 2026-08-16 19:48 UTCEG score recompute
  16. 2026-08-16 19:48 UTCGHSA enrichment
  17. 2026-08-16 14:56 UTCEPSS rescore
  18. 2026-08-16 07:12 UTCEG score recompute
  19. 2026-08-16 07:12 UTCGHSA enrichment
  20. 2026-08-16 02:14 UTCEPSS rescore
  21. 2026-08-15 18:35 UTCGHSA enrichment
  22. 2026-08-15 05:59 UTCEG score recompute
  23. 2026-08-15 05:59 UTCGHSA enrichment
  24. 2026-08-15 01:30 UTCEPSS rescore
  25. 2026-08-14 17:22 UTCGHSA enrichment
Show 41 more
  1. 2026-08-14 04:39 UTCEG score recompute
  2. 2026-08-14 04:39 UTCGHSA enrichment
  3. 2026-08-13 22:00 UTCEPSS rescore
  4. 2026-08-13 16:03 UTCGHSA enrichment
  5. 2026-08-13 03:23 UTCGHSA enrichment
  6. 2026-08-12 14:48 UTCEG score recompute
  7. 2026-08-12 14:48 UTCGHSA enrichment
  8. 2026-08-12 13:50 UTCEPSS rescore
  9. 2026-08-12 02:12 UTCEG score recompute
  10. 2026-08-12 02:12 UTCGHSA enrichment
  11. 2026-08-11 13:42 UTCEPSS rescore
  12. 2026-08-11 13:36 UTCGHSA enrichment
  13. 2026-08-11 01:00 UTCGHSA enrichment
  14. 2026-08-10 12:25 UTCEG score recompute
  15. 2026-08-10 12:25 UTCGHSA enrichment
  16. 2026-08-10 11:42 UTCEG score recompute
  17. 2026-08-10 11:42 UTCGHSA enrichment
  18. 2026-08-09 23:24 UTCGHSA enrichment
  19. 2026-08-09 10:49 UTCGHSA enrichment
  20. 2026-08-08 22:13 UTCEG score recompute
  21. 2026-08-08 22:13 UTCGHSA enrichment
  22. 2026-08-08 16:37 UTCEPSS rescore
  23. 2026-08-08 09:37 UTCGHSA enrichment
  24. 2026-08-07 21:01 UTCEG score recompute
  25. 2026-08-07 21:01 UTCGHSA enrichment
  26. 2026-08-07 08:25 UTCGHSA enrichment
  27. 2026-08-06 19:49 UTCEG score recompute
  28. 2026-08-06 19:49 UTCGHSA enrichment
  29. 2026-08-06 13:46 UTCEPSS rescore
  30. 2026-08-06 07:13 UTCEG score recompute
  31. 2026-08-06 07:13 UTCGHSA enrichment
  32. 2026-08-05 19:17 UTCEPSS rescore
  33. 2026-08-05 18:37 UTCGHSA enrichment
  34. 2026-08-05 06:01 UTCGHSA enrichment
  35. 2026-08-04 17:24 UTCEG score recompute
  36. 2026-08-04 17:24 UTCGHSA enrichment
  37. 2026-08-04 16:29 UTCEG score recompute
  38. 2026-08-04 16:29 UTCGHSA enrichment
  39. 2026-08-04 13:26 UTCEG score recompute
  40. 2026-08-04 13:13 UTCEG score recompute
  41. 2026-08-04 13:13 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-18806?
CVE-2026-18806 is a high vulnerability published on August 4, 2026. External control of file name or path vulnerability in TÜBİTAK BİLGEM Software Technologies Research Institute pardus-image-writer allows Removing Important Client Functionality. This issue affects pardus-image-writer: before 0.9.0.
When was CVE-2026-18806 disclosed?
CVE-2026-18806 was first published in the National Vulnerability Database on August 4, 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-2026-18806 actively exploited?
CVE-2026-18806 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 99.0% of all scored CVEs.
What is the CVSS score of CVE-2026-18806?
CVE-2026-18806 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-18806?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-18806, 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

Explore the affected products and dependency analysis for CVE-2026-18806

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