CVE-2026-71272

HIGHPre-NVD 8.58.5—
EchelonGraph scoreMEDIUM confidence

Score 8.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-05. a secondary CVSS source baseline 8.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.5Exploit: None knownExposed: 0

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

Memos' webhook dispatch function safeDialContext (internal/webhook/webhook.go) resolves the target hostname via net.DefaultResolver.LookupHost and validates the resulting IPs against reserved ranges, but then dials net.JoinHostPort(host, port) using the original hostname rather than the already-validated IP address.

CVSS v3
8.5
EG Score
8.5(medium)
EG Risk
38(Track)
EG Risk 38/100SSVC: 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
Severity85% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
6%
KEV
Not listed

Published

August 5, 2026

Last Modified

August 26, 2026

Advisory Details (2)

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

memos/internal/webhook/webhook.go at main · usememos/memos · GitHub

https://github.com/usememos/memos/blob/main/internal/webhook/webhook.go
generic

GitHub - usememos/memos: Open-source, self-hosted note-taking tool built for quick capture. Markdown-native, lightweight, and fully yours. · GitHub

https://github.com/usememos/memos

Vendor Advisories for CVE-2026-71272(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 24× in last 7d / 93× 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 162 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-71272?
CVE-2026-71272 is a high vulnerability published on August 5, 2026. Memos' webhook dispatch function safeDialContext (internal/webhook/webhook.go) resolves the target hostname via net.DefaultResolver.LookupHost and validates the resulting IPs against reserved ranges, but then dials net.JoinHostPort(host, port) using the original hostname rather than the…
When was CVE-2026-71272 disclosed?
CVE-2026-71272 was first published in the National Vulnerability Database on August 5, 2026, with the most recent update on August 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-71272 actively exploited?
CVE-2026-71272 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 93.8% of all scored CVEs.
What is the CVSS score of CVE-2026-71272?
CVE-2026-71272 has a CVSS v3 base score of 8.5 (NVD).
How do I remediate CVE-2026-71272?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-71272, 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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