CVE-2026-73529

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2026-08-18. A secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 5.3Exploit: None knownExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

Plainpad through 1.1.1, fixed in commit d3823fc, contains a missing rate limiting vulnerability that allows unauthenticated attackers to send unbounded login requests to the POST /v1/sessions endpoint due to dead code in App\Http\Kernel.php that is never instantiated under the Laravel 11+ skeleton, leaving the API throttle configuration unattached to any route. Attackers can exploit this by sending unlimited credential attempts with no lockout or CAPTCHA enforcement, and additionally trigger CPU exhaustion by forcing repeated bcrypt comparisons on each request.

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
39
EG Risk 39/100CISA SSVC

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
Severity53% × 45%
Exploitation0% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high until it ships, then apply the release.
EPSS PROB
0.4%
EPSS %ILE
33rd
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high until it ships, then apply the release.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 18, 2026

Last Modified

September 16, 2026

Advisory Details (2)

Auto-updated Aug 18, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
generic

Plainpad Missing Rate Limiting via POST /v1/sessions | Advisories | VulnCheck

https://www.vulncheck.com/advisories/plainpad-missing-rate-limiting-via-post-v1-sessions
github_commit

commit d3823fc595b5 (alextselegidis/plainpad)

Fix landed in alextselegidis/plainpad commit d3823fc595b5 — awaiting tagged release

https://github.com/alextselegidis/plainpad/commit/d3823fc595b5d8f842a6fd7dfe49b7852a10fdac

Vendor Advisories for CVE-2026-73529(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 13× in last 7d / 71× 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 136 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-73529?
CVE-2026-73529 is a medium vulnerability published on August 18, 2026. Plainpad through 1.1.1, fixed in commit d3823fc, contains a missing rate limiting vulnerability that allows unauthenticated attackers to send unbounded login requests to the POST /v1/sessions endpoint due to dead code in App\Http\Kernel.php that is never instantiated under the Laravel 11+ skeleton,…
When was CVE-2026-73529 disclosed?
CVE-2026-73529 was first published on August 18, 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-2026-73529 actively exploited?
CVE-2026-73529 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (33rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73529?
CVE-2026-73529 has a CVSS base score of 5.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-73529?
An upstream fix for CVE-2026-73529 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-73529 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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