CVE-2026-36829

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-19. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this weekElevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: Elevated riskExposed: 0

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

An authentication bypass vulnerability exists in the embedded HTTP server of Panabit PAP-XM320 up to and including v7.7. The server validates session cookies using a filesystem existence check based on a user-controlled cookie value without proper sanitization, allowing directory traversal and bypass of authentication.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
75(Attend)
EG Risk 75/100SSVC: Attend

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
Severity98% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
1%
EPSS %ILE
67%
KEV
Not listed

Published

May 19, 2026

Last Modified

July 24, 2026

Advisory Details (2)

Auto-updated Aug 28, 2026
No patch confirmed yet.
generic

Notion

https://secreu.notion.site/CVE-2026-36829-3652c0ab461580e19704e87b18865714
generic

北京派网软件有限公司

https://www.panabit.com/

Vendor Advisories for CVE-2026-36829(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 115× 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.

Showing the most recent 100 of 328 total refreshes for this CVE.

  1. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-28 21:41 UTCEPSS rescore
  3. 2026-08-27 14:25 UTCEPSS rescore
  4. 2026-08-26 14:46 UTCEPSS rescore
  5. 2026-08-25 13:49 UTCEPSS rescore
  6. 2026-08-24 00:52 UTCGHSA enrichment
  7. 2026-08-23 20:58 UTCGHSA enrichment
  8. 2026-08-23 17:00 UTCEG score recompute
  9. 2026-08-23 17:00 UTCGHSA enrichment
  10. 2026-08-23 00:19 UTCEPSS rescore
  11. 2026-08-21 23:49 UTCEPSS rescore
  12. 2026-08-21 23:37 UTCEG score recompute
  13. 2026-08-21 23:37 UTCGHSA enrichment
  14. 2026-08-20 22:55 UTCEPSS rescore
  15. 2026-08-20 19:01 UTCEG score recompute
  16. 2026-08-20 19:01 UTCGHSA enrichment
  17. 2026-08-19 17:03 UTCEPSS rescore
  18. 2026-08-18 13:48 UTCEPSS rescore
  19. 2026-08-17 13:53 UTCEG score recompute
  20. 2026-08-17 13:53 UTCGHSA enrichment
  21. 2026-08-17 13:47 UTCEPSS rescore
  22. 2026-08-17 09:59 UTCGHSA enrichment
  23. 2026-08-16 16:56 UTCEG score recompute
  24. 2026-08-16 16:56 UTCGHSA enrichment
  25. 2026-08-16 14:56 UTCEPSS rescore
Show 75 more
  1. 2026-08-16 11:32 UTCGHSA enrichment
  2. 2026-08-16 07:38 UTCGHSA enrichment
  3. 2026-08-16 03:34 UTCEG score recompute
  4. 2026-08-16 03:34 UTCGHSA enrichment
  5. 2026-08-16 02:14 UTCEPSS rescore
  6. 2026-08-15 01:47 UTCEG score recompute
  7. 2026-08-15 01:47 UTCGHSA enrichment
  8. 2026-08-15 01:30 UTCEPSS rescore
  9. 2026-08-14 21:54 UTCGHSA enrichment
  10. 2026-08-14 18:00 UTCGHSA enrichment
  11. 2026-08-14 13:48 UTCGHSA enrichment
  12. 2026-08-14 09:54 UTCGHSA enrichment
  13. 2026-08-14 06:00 UTCGHSA enrichment
  14. 2026-08-14 02:06 UTCEG score recompute
  15. 2026-08-14 02:06 UTCGHSA enrichment
  16. 2026-08-13 22:00 UTCEPSS rescore
  17. 2026-08-13 08:14 UTCGHSA enrichment
  18. 2026-08-13 03:35 UTCGHSA enrichment
  19. 2026-08-12 23:41 UTCGHSA enrichment
  20. 2026-08-12 19:47 UTCGHSA enrichment
  21. 2026-08-12 15:53 UTCEG score recompute
  22. 2026-08-12 15:53 UTCGHSA enrichment
  23. 2026-08-12 13:51 UTCEPSS rescore
  24. 2026-08-12 12:00 UTCGHSA enrichment
  25. 2026-08-11 22:54 UTCGHSA enrichment
  26. 2026-08-11 18:47 UTCGHSA enrichment
  27. 2026-08-11 13:53 UTCEG score recompute
  28. 2026-08-11 13:53 UTCGHSA enrichment
  29. 2026-08-11 08:26 UTCGHSA enrichment
  30. 2026-08-11 04:32 UTCGHSA enrichment
  31. 2026-08-11 00:38 UTCEG score recompute
  32. 2026-08-11 00:38 UTCGHSA enrichment
  33. 2026-08-11 00:00 UTCEPSS rescore
  34. 2026-08-10 12:49 UTCGHSA enrichment
  35. 2026-08-10 08:55 UTCGHSA enrichment
  36. 2026-08-10 05:02 UTCGHSA enrichment
  37. 2026-08-10 01:07 UTCGHSA enrichment
  38. 2026-08-09 21:14 UTCGHSA enrichment
  39. 2026-08-09 17:20 UTCEG score recompute
  40. 2026-08-09 17:20 UTCGHSA enrichment
  41. 2026-08-09 13:46 UTCEPSS rescore
  42. 2026-08-09 13:26 UTCGHSA enrichment
  43. 2026-08-09 09:32 UTCGHSA enrichment
  44. 2026-08-09 05:29 UTCGHSA enrichment
  45. 2026-08-09 01:35 UTCEG score recompute
  46. 2026-08-09 01:35 UTCGHSA enrichment
  47. 2026-08-08 16:37 UTCEPSS rescore
  48. 2026-08-08 12:35 UTCGHSA enrichment
  49. 2026-08-08 08:39 UTCGHSA enrichment
  50. 2026-08-08 04:45 UTCGHSA enrichment
  51. 2026-08-08 00:51 UTCGHSA enrichment
  52. 2026-08-07 20:57 UTCGHSA enrichment
  53. 2026-08-07 17:03 UTCEG score recompute
  54. 2026-08-07 17:03 UTCGHSA enrichment
  55. 2026-08-07 13:09 UTCGHSA enrichment
  56. 2026-08-07 09:15 UTCGHSA enrichment
  57. 2026-08-07 05:15 UTCGHSA enrichment
  58. 2026-08-07 01:09 UTCGHSA enrichment
  59. 2026-08-06 20:44 UTCGHSA enrichment
  60. 2026-08-06 16:50 UTCEG score recompute
  61. 2026-08-06 16:50 UTCGHSA enrichment
  62. 2026-08-06 13:46 UTCEPSS rescore
  63. 2026-08-06 12:56 UTCGHSA enrichment
  64. 2026-08-06 09:02 UTCGHSA enrichment
  65. 2026-08-06 05:08 UTCGHSA enrichment
  66. 2026-08-06 01:14 UTCGHSA enrichment
  67. 2026-08-05 21:20 UTCEG score recompute
  68. 2026-08-05 21:20 UTCGHSA enrichment
  69. 2026-08-05 19:17 UTCEPSS rescore
  70. 2026-08-04 15:10 UTCEPSS rescore
  71. 2026-08-04 10:38 UTCEPSS rescore
  72. 2026-08-04 04:40 UTCGHSA enrichment
  73. 2026-08-04 00:46 UTCGHSA enrichment
  74. 2026-08-03 20:52 UTCGHSA enrichment
  75. 2026-08-03 16:58 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-36829?
CVE-2026-36829 is a critical vulnerability published on May 19, 2026. An authentication bypass vulnerability exists in the embedded HTTP server of Panabit PAP-XM320 up to and including v7.7. The server validates session cookies using a filesystem existence check based on a user-controlled cookie value without proper sanitization, allowing directory traversal and…
When was CVE-2026-36829 disclosed?
CVE-2026-36829 was first published in the National Vulnerability Database on May 19, 2026, with the most recent update on July 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-36829 actively exploited?
CVE-2026-36829 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 32.8% of all scored CVEs.
What is the CVSS score of CVE-2026-36829?
CVE-2026-36829 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-36829?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-36829, 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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