CVE-2026-73058

MEDIUMPre-NVD 5.85.8—
EchelonGraph scoreMEDIUM confidence

Score 5.8 from GitHub Security Advisory published 2026-08-16. a secondary CVSS source baseline 5.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
5.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.8Exploit: Elevated riskExposed: 0

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

stoatchat versions before 0.15.0 fail to block the IPv6 unspecified address (::) in the SSRF blocklist, allowing unauthenticated attackers to bypass protections via the /proxy and /embed endpoints. Attackers can craft requests using IPv6 literal syntax to access services on the loopback interface and retrieve sensitive internal content.

CVSS v3
5.8
EG Score
5.8(medium)
EG Risk
57(Attend)
EG Risk 57/100SSVC: 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
Severity58% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
15%
KEV
Not listed

Published

August 16, 2026

Last Modified

August 31, 2026

Advisory Details (2)

Auto-updated Aug 16, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

stoatchat before 0.15.0 SSRF via IPv6 unspecified address bypass | Advisories | VulnCheck

https://www.vulncheck.com/advisories/stoatchat-before-ssrf-via-ipv6-unspecified-address-bypass
github Patch Available🟡 PoC Available

Unauthenticated SSRF via IPv6 unspecified address (::) bypass · Advisory · stoatchat/stoatchat · GitHub

https://github.com/stoatchat/stoatchat/security/advisories/GHSA-4rmr-77qv-hq47

Vendor Advisories for CVE-2026-73058(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 18× in last 7d / 81× 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 103 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-73058?
CVE-2026-73058 is a medium vulnerability published on August 16, 2026. stoatchat versions before 0.15.0 fail to block the IPv6 unspecified address (::) in the SSRF blocklist, allowing unauthenticated attackers to bypass protections via the /proxy and /embed endpoints. Attackers can craft requests using IPv6 literal syntax to access services on the loopback interface…
When was CVE-2026-73058 disclosed?
CVE-2026-73058 was first published in the National Vulnerability Database on August 16, 2026, with the most recent update on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73058 actively exploited?
CVE-2026-73058 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 84.9% of all scored CVEs.
What is the CVSS score of CVE-2026-73058?
CVE-2026-73058 has a CVSS v3 base score of 5.8 (NVD).
How do I remediate CVE-2026-73058?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73058, 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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