CVE-2026-16196

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreMEDIUM confidence

Score 6.3 from GitHub Security Advisory (severity: LOW) published 2026-07-19. a secondary CVSS source baseline 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
6.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.3Exploit: Elevated riskExposed: 0

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

A weakness has been identified in Sipeed PicoClaw up to 0.2.9. Impacted is the function isPrivateOrRestrictedIP of the file pkg/tools/integration/web.go of the component web_fetch. This manipulation causes server-side request forgery. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks. Patch name: 2efbe5d560e7ed9bc5209c203dc4aa6ecdbc7405. To fix this issue, it is recommended to deploy a patch.

CVSS v3
6.3
EG Score
6.3(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity63% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
34%
KEV
Not listed

Published

July 18, 2026

Last Modified

July 22, 2026

Advisory Details (4)

Auto-updated Jul 19, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit, github_pr.
github_pr

fix(tools): block 198.18.0.0/15 in SSRF guard

Fix merged in sipeed/picoclaw PR #3085 on 2026-06-10 — awaiting tagged release

https://github.com/sipeed/picoclaw/pull/3085
generic

[Security] PicoClaw `web_fetch` SSRF restriction bypass via special-use IPv4 literal `198.18.0.0/15` · Issue #3077 · sipeed/picoclaw · GitHub

https://github.com/sipeed/picoclaw/issues/3077
github_commit

commit 2efbe5d560e7 (sipeed/picoclaw)

Fix landed in sipeed/picoclaw commit 2efbe5d560e7 — awaiting tagged release

https://github.com/sipeed/picoclaw/commit/2efbe5d560e7ed9bc5209c203dc4aa6ecdbc7405
generic

GitHub - sipeed/picoclaw: Tiny, Fast, and Deployable anywhere — automate the mundane, unleash your creativity · GitHub

https://github.com/sipeed/picoclaw/

Vendor Advisories for CVE-2026-16196(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 10× in last 7d / 64× 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 132 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-16196?
CVE-2026-16196 is a medium vulnerability published on July 18, 2026. A weakness has been identified in Sipeed PicoClaw up to 0.2.9. Impacted is the function isPrivateOrRestrictedIP of the file pkg/tools/integration/web.go of the component web_fetch. This manipulation causes server-side request forgery. The attack can be initiated remotely. The exploit has been made…
When was CVE-2026-16196 disclosed?
CVE-2026-16196 was first published in the National Vulnerability Database on July 18, 2026, with the most recent update on July 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-16196 actively exploited?
CVE-2026-16196 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 65.8% of all scored CVEs.
What is the CVSS score of CVE-2026-16196?
CVE-2026-16196 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-16196?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-16196, 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

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