CVE-2026-35187

HIGHNVD 7.77.7—
EchelonGraph scoreMEDIUM confidence

Score 7.7 from GitHub Security Advisory (severity: HIGH) published 2026-04-04. NVD baseline CVSS 7.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
7.7
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.7Exploit: NoneExposed: 0

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

pyLoad is a free and open-source download manager written in Python. In 0.5.0b3.dev96 and earlier, the parse_urls API function in src/pyload/core/api/__init__.py fetches arbitrary URLs server-side via get_url(url) (pycurl) without any URL validation, protocol restriction, or IP blacklist. An authenticated user with ADD permission can make HTTP/HTTPS requests to internal network resources and cloud metadata endpoints, read local files via file:// protocol (pycurl reads the file server-side), interact with internal services via gopher:// and dict:// protocols, and enumerate file existence via error-based oracle (error 37 vs empty response).

CVSS v3
7.7
EG Score
7.7(medium)
EPSS
18.6%
KEV
Not listed

Published

April 6, 2026

Last Modified

April 20, 2026

Advisory Details (2)

Auto-updated Jun 11, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github.
github Patch Available🟡 PoC Available

SSRF in parse_urls API endpoint via unvalidated URL parameter · Advisory · pyload/pyload · GitHub

https://github.com/pyload/pyload/security/advisories/GHSA-2wvg-62qm-gj33
github_commit

commit 4032e57d61d8 (pyload/pyload)

Fix landed in pyload/pyload commit 4032e57d61d8 — awaiting tagged release

https://github.com/pyload/pyload/commit/4032e57d61d8f864e39f4dcfdb567527a50a9e1f

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
pippyload-ng—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
pyload-ng0.5.0a5.dev528 ... 0.5.0b3.dev96 (101 versions)——

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 42× 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. 2026-07-15 16:57 UTCEPSS rescore
  2. 2026-07-15 16:57 UTCEPSS rescore
  3. 2026-07-15 02:00 UTCEPSS rescore
  4. 2026-07-13 22:30 UTCEPSS rescore
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  7. 2026-07-12 05:46 UTCEPSS rescore
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  10. 2026-07-08 15:15 UTCEPSS rescore
  11. 2026-07-07 13:46 UTCEPSS rescore
  12. 2026-07-06 16:27 UTCEPSS rescore
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  14. 2026-07-06 02:23 UTCEPSS rescore
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  24. 2026-06-28 04:56 UTCEPSS rescore
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  1. 2026-06-27 03:08 UTCEPSS rescore
  2. 2026-06-25 13:49 UTCEPSS rescore
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  4. 2026-06-24 14:05 UTCEPSS rescore
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  7. 2026-06-22 14:25 UTCEPSS rescore
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  9. 2026-06-21 14:56 UTCEPSS rescore
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  11. 2026-06-21 01:59 UTCEPSS rescore
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  18. 2026-06-15 17:49 UTCEPSS rescore
  19. 2026-06-14 23:18 UTCEPSS rescore
  20. 2026-06-13 23:00 UTCEPSS rescore
  21. 2026-06-12 23:12 UTCEPSS rescore
  22. 2026-06-12 23:12 UTCEPSS rescore
  23. 2026-06-11 21:33 UTCEG score recompute
  24. 2026-06-11 21:33 UTCGHSA enrichment
  25. 2026-06-11 14:00 UTCEPSS rescore
  26. 2026-06-10 22:18 UTCEPSS rescore
  27. 2026-06-10 13:22 UTCEPSS rescore
  28. 2026-06-10 13:03 UTCEG score recompute
  29. 2026-06-10 13:03 UTCGHSA enrichment
  30. 2026-06-10 01:33 UTCEG score recompute
  31. 2026-06-10 01:33 UTCGHSA enrichment
  32. 2026-06-09 14:03 UTCEG score recompute
  33. 2026-06-09 14:03 UTCGHSA enrichment
  34. 2026-06-08 14:17 UTCEPSS rescore
  35. 2026-06-08 14:17 UTCEPSS rescore
  36. 2026-06-08 09:27 UTCEG score recompute
  37. 2026-06-08 09:27 UTCGHSA enrichment
  38. 2026-06-07 21:57 UTCEG score recompute
  39. 2026-06-07 21:57 UTCGHSA enrichment
  40. 2026-06-07 15:25 UTCEPSS rescore
  41. 2026-06-07 15:25 UTCEPSS rescore
  42. 2026-06-07 15:25 UTCEPSS rescore
  43. 2026-06-07 10:26 UTCEG score recompute
  44. 2026-06-07 10:26 UTCGHSA enrichment
  45. 2026-06-06 13:47 UTCEPSS rescore
  46. 2026-06-06 13:47 UTCEPSS rescore
  47. 2026-06-05 22:47 UTCEPSS rescore
  48. 2026-06-05 22:47 UTCEPSS rescore
  49. 2026-06-05 06:10 UTCEPSS rescore
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  51. 2026-06-04 13:12 UTCEPSS rescore
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  53. 2026-06-02 20:13 UTCEPSS rescore
  54. 2026-06-01 13:52 UTCEPSS rescore
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  57. 2026-05-31 22:30 UTCEPSS rescore
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  62. 2026-05-29 13:44 UTCEPSS rescore
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  64. 2026-05-28 13:44 UTCEPSS rescore
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  67. 2026-05-27 13:40 UTCEPSS rescore
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  70. 2026-05-26 13:44 UTCEPSS rescore
  71. 2026-05-26 07:18 UTCEPSS rescore
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  73. 2026-05-20 22:38 UTCEPSS rescore
  74. 2026-05-20 22:38 UTCEPSS rescore
  75. 2026-05-20 18:50 UTCEG score recompute

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Frequently asked(5)

What is CVE-2026-35187?
CVE-2026-35187 is a high vulnerability published on April 6, 2026. pyLoad is a free and open-source download manager written in Python. In 0.5.0b3.dev96 and earlier, the parseurls API function in src/pyload/core/api/init.py fetches arbitrary URLs server-side via geturl(url) (pycurl) without any URL validation, protocol restriction, or IP blacklist. An…
When was CVE-2026-35187 disclosed?
CVE-2026-35187 was first published in the National Vulnerability Database on April 6, 2026, with the most recent update on April 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-35187 actively exploited?
CVE-2026-35187 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 18.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-35187?
CVE-2026-35187 has a CVSS v3 base score of 7.7 (NVD).
How do I remediate CVE-2026-35187?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-35187, 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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