CVE-2026-19246

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreHIGH confidence

Score 6.3 from GitHub Security Advisory (severity: LOW) published 2026-08-07. a secondary CVSS source baseline 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 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 vulnerability has been found in HKUDS nanobot up to 0.2.1. This affects the function _download_image_data_url of the file nanobot/providers/image_generation.py of the component Provider-returned Image URL Handler. The manipulation leads to server-side request forgery. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of the patch is 5095. It is recommended to apply a patch to fix this issue. The vendor explains: "We confirm that provider-returned image URLs required the same SSRF protections applied to other network retrieval paths. (...) The patch is currently available on main and is planned for the next patch release, v0.3.1."

CVSS v3
6.3
EG Score
6.3(high)
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
13%
KEV
Not listed

Published

August 7, 2026

Last Modified

August 14, 2026

Advisory Details (3)

Auto-updated Aug 7, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr.
generic

GitHub - HKUDS/nanobot: Ultra-lightweight, open-source, self-hosted personal AI agent framework in Python with WebUI, tools, memory, MCP, multi-agent workflows, automation, and chat apps · GitHub

https://github.com/HKUDS/nanobot/
github_pr

fix(security): harden generated image URL downloads

Fix merged in HKUDS/nanobot PR #5095 on 2026-07-27 — awaiting tagged release

https://github.com/HKUDS/nanobot/pull/5095
generic

Unknown: Provider-returned image URLs bypass SSRF protection during image generation · GitHub

https://gist.github.com/YLChen-007/44bc77ac259e461c6938cc6c286c4430

Vendor Advisories for CVE-2026-19246(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 25× in last 7d / 47× 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.

  1. 2026-08-21 04:45 UTCEG score recompute
  2. 2026-08-21 04:45 UTCGHSA enrichment
  3. 2026-08-20 22:55 UTCEPSS rescore
  4. 2026-08-20 06:26 UTCEG score recompute
  5. 2026-08-20 06:26 UTCGHSA enrichment
  6. 2026-08-19 17:03 UTCEPSS rescore
  7. 2026-08-19 08:07 UTCGHSA enrichment
  8. 2026-08-18 09:47 UTCEG score recompute
  9. 2026-08-18 09:47 UTCGHSA enrichment
  10. 2026-08-17 13:47 UTCEPSS rescore
  11. 2026-08-17 11:28 UTCEG score recompute
  12. 2026-08-17 11:28 UTCGHSA enrichment
  13. 2026-08-16 14:56 UTCEPSS rescore
  14. 2026-08-16 13:10 UTCEG score recompute
  15. 2026-08-16 13:10 UTCGHSA enrichment
  16. 2026-08-16 02:14 UTCEPSS rescore
  17. 2026-08-15 14:51 UTCEG score recompute
  18. 2026-08-15 14:51 UTCGHSA enrichment
  19. 2026-08-15 01:30 UTCEPSS rescore
  20. 2026-08-14 16:32 UTCEG score recompute
  21. 2026-08-14 16:32 UTCGHSA enrichment
  22. 2026-08-14 16:31 UTCNVD updateCVSS v4 → 2.1
  23. 2026-08-14 16:04 UTCEG score recompute
  24. 2026-08-14 16:04 UTCGHSA enrichment
  25. 2026-08-14 16:03 UTCMITRE cvelistV5CVSS v4 → 5.3
Show 22 more
  1. 2026-08-13 22:00 UTCEPSS rescore
  2. 2026-08-13 19:24 UTCGHSA enrichment
  3. 2026-08-12 21:04 UTCEG score recompute
  4. 2026-08-12 21:04 UTCGHSA enrichment
  5. 2026-08-12 13:50 UTCEPSS rescore
  6. 2026-08-12 13:14 UTCGHSA enrichment
  7. 2026-08-11 14:55 UTCEG score recompute
  8. 2026-08-11 14:55 UTCGHSA enrichment
  9. 2026-08-11 13:42 UTCEPSS rescore
  10. 2026-08-11 00:00 UTCEPSS rescore
  11. 2026-08-10 16:36 UTCGHSA enrichment
  12. 2026-08-09 18:09 UTCEG score recompute
  13. 2026-08-09 18:09 UTCGHSA enrichment
  14. 2026-08-09 13:46 UTCEPSS rescore
  15. 2026-08-08 19:51 UTCEG score recompute
  16. 2026-08-08 19:51 UTCGHSA enrichment
  17. 2026-08-08 16:37 UTCEPSS rescore
  18. 2026-08-07 21:32 UTCEG score recompute
  19. 2026-08-07 21:32 UTCGHSA enrichment
  20. 2026-08-07 21:31 UTCNVD updateCVSS v4 → 2.1
  21. 2026-08-07 21:02 UTCEG score recompute
  22. 2026-08-07 21:02 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-19246?
CVE-2026-19246 is a medium vulnerability published on August 7, 2026. A vulnerability has been found in HKUDS nanobot up to 0.2.1. This affects the function downloadimagedataurl of the file nanobot/providers/image_generation.py of the component Provider-returned Image URL Handler. The manipulation leads to server-side request forgery. It is possible to initiate the…
When was CVE-2026-19246 disclosed?
CVE-2026-19246 was first published in the National Vulnerability Database on August 7, 2026, with the most recent update on August 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-19246 actively exploited?
CVE-2026-19246 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 87.0% of all scored CVEs.
What is the CVSS score of CVE-2026-19246?
CVE-2026-19246 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-19246?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-19246, 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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