CVE-2026-35187

HIGHNVD 7.77.7
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

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, GitHub Security Advisory, NVD CVSS v3
Trending — 3 sources updated this weekElevated
7.7EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.7Exploit: No code on recordExposed services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

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
7.7HIGHmedium confidence
EG Risk
51
EG Risk 51/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity77% × 45%
Impact severity (EG Severity): CVSS 7.7 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines; until then, restrict network exposure of the affected system or apply the vendor's mitigation.
EPSS PROB
0.4%
EPSS %ILE
28th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.7): severity, escalated by confirmed exploitation. This CVE's 7.7 is its impact severity (EG Severity), not escalated.

EG Severity
7.7 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.4% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-17). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

April 6, 2026

Last Modified

July 24, 2026

Advisory Details (2)

Auto-updated Jun 11, 2026
Fix referenced — no release confirmed yet. Sources: github_commit, github.
GitHub advisoryMentions a patch (unverified)

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 / EcosystemFix (by version range) / 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 rangeFix by version rangeDependents
pyload-ng0.5.0a5.dev528 ... 0.5.0b3.dev96 (101 versions)
  • every version through 0.5.0b3.dev96: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 33× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 99 of 223 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 100 is merged into the row it repeats. The 124 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  2. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  3. 2026-10-18 03:45 UTCEG score recompute
  4. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  5. 2026-10-17 15:23 UTCEG score recompute
  6. 2026-10-17 15:23 UTCGHSA enrichmentGHSA-2wvg-62qm-gj33 · GitHub severity HIGH · GitHub CVSS 7.7
  7. 2026-10-16 16:41 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  8. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  9. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  10. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  11. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  12. 2026-10-12 16:12 UTCEG score recompute
  13. 2026-10-11 19:54 UTCEG score recompute
  14. 2026-10-11 17:07 UTCEG score recompute
  15. 2026-10-11 14:34 UTCEG score recompute
  16. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  17. 2026-10-11 00:22 UTCOSV refresh
  18. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  19. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  20. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  21. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  22. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  23. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  24. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  25. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.4% · 28th percentile
Show 74 more
  1. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  2. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  3. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  4. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  5. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  6. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  7. 2026-09-21 12:19 UTCOSV refresh
  8. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  9. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  10. 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  11. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  12. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  13. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  14. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  15. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  16. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  17. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  18. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  19. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  20. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  21. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  22. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  23. 2026-09-02 09:44 UTCOSV refresh
  24. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  25. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  26. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  27. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  28. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  29. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  30. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  31. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  32. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  33. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  34. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  35. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  36. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  37. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  38. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  39. 2026-08-16 08:22 UTCEG score recompute
  40. 2026-08-16 08:22 UTCGHSA enrichmentGHSA-2wvg-62qm-gj33 · GitHub severity HIGH · GitHub CVSS 7.7
  41. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  42. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  43. 2026-08-14 18:45 UTCGHSA enrichmentGHSA-2wvg-62qm-gj33 · GitHub severity HIGH · GitHub CVSS 7.7
  44. 2026-08-14 05:30 UTCEG score recompute
  45. 2026-08-14 05:30 UTCGHSA enrichmentGHSA-2wvg-62qm-gj33 · GitHub severity HIGH · GitHub CVSS 7.7
  46. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  47. 2026-08-13 09:43 UTCGHSA enrichmentGHSA-2wvg-62qm-gj33 · GitHub severity HIGH · GitHub CVSS 7.7
  48. 2026-08-12 19:44 UTCEG score recompute
  49. 2026-08-12 19:44 UTCGHSA enrichmentGHSA-2wvg-62qm-gj33 · GitHub severity HIGH · GitHub CVSS 7.7
  50. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  51. 2026-08-11 19:55 UTCEG score recompute
  52. 2026-08-11 19:55 UTCGHSA enrichmentGHSA-2wvg-62qm-gj33 · GitHub severity HIGH · GitHub CVSS 7.7
  53. 2026-08-11 03:17 UTCEG score recompute
  54. 2026-08-11 03:17 UTCGHSA enrichmentGHSA-2wvg-62qm-gj33 · GitHub severity HIGH · GitHub CVSS 7.7
  55. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  56. 2026-08-10 04:02 UTCGHSA enrichmentGHSA-2wvg-62qm-gj33 · GitHub severity HIGH · GitHub CVSS 7.7
  57. 2026-08-09 16:32 UTCEG score recompute
  58. 2026-08-09 16:32 UTCGHSA enrichmentGHSA-2wvg-62qm-gj33 · GitHub severity HIGH · GitHub CVSS 7.7
  59. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  60. 2026-08-09 05:01 UTCEG score recompute
  61. 2026-08-09 05:01 UTCGHSA enrichmentGHSA-2wvg-62qm-gj33 · GitHub severity HIGH · GitHub CVSS 7.7
  62. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  63. 2026-08-08 02:32 UTCEG score recompute
  64. 2026-08-08 02:32 UTCGHSA enrichmentGHSA-2wvg-62qm-gj33 · GitHub severity HIGH · GitHub CVSS 7.7
  65. 2026-08-07 15:03 UTCEG score recompute
  66. 2026-08-07 15:03 UTCGHSA enrichmentGHSA-2wvg-62qm-gj33 · GitHub severity HIGH · GitHub CVSS 7.7
  67. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  68. 2026-08-06 13:01 UTCGHSA enrichmentGHSA-2wvg-62qm-gj33 · GitHub severity HIGH · GitHub CVSS 7.7
  69. 2026-08-06 00:06 UTCEG score recompute
  70. 2026-08-06 00:06 UTCGHSA enrichmentGHSA-2wvg-62qm-gj33 · GitHub severity HIGH · GitHub CVSS 7.7
  71. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  72. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  73. 2026-08-04 10:38 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  74. 2026-08-03 22:26 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-35187?
CVE-2026-35187 is a high-severity vulnerability; its CVE record was 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 the CVE record for CVE-2026-35187 published?
The CVE record for CVE-2026-35187 was published on April 6, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of July 24, 2026; the record at its source may have been updated since.
Is CVE-2026-35187 actively exploited?
CVE-2026-35187 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (28th percentile of EPSS-scored CVEs).
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?
A fix for CVE-2026-35187 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-35187

Explore →

Is Your Infrastructure Affected by CVE-2026-35187?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.