CVE-2026-108580

MEDIUMPre-NVD 6.56.5
EchelonGraph scoreHIGH confidence

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

Score 6.5 from GitHub Security Advisory published 2026-10-10. A secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this week

Also known asEUVD-2026-96363 (ENISA EUVD) · GHSA-cwhp-rxhr-43pp (GitHub Security Advisories)Source: ENISA EUVD

6.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 6.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

AniWorld Downloader before 5.3.0 contains an improper restriction of authentication attempts vulnerability in the WebUI /login POST handler that allows unauthenticated attackers to guess passwords without throttling. Attackers can enumerate usernames through verify_user response timing and brute-force passwords on exposed WebUI instances to take over accounts.

CVSS v3
6.5
EG Score
6.5MEDIUMhigh confidence
EG Risk
44
EG Risk 44/100

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)
Severity65% × 45%
Impact severity (EG Severity): CVSS 6.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.3% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (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 available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.3%
EPSS %ILE
18th
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 (6.5): severity, escalated by confirmed exploitation. This CVE's 6.5 is its impact severity (EG Severity), not escalated.

EG Severity
6.5 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.3% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-28). 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; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

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

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (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)14 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (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

October 10, 2026

Last Modified

October 16, 2026

Advisory Details (6)

Auto-updated Oct 10, 2026
Patch available. Sources: github_commit, github_release.
Web page

AniWorld Downloader before 5.3.0 WebUI Login Brute Force via /login | Advisories | VulnCheck

https://www.vulncheck.com/advisories/aniworld-downloader-before-5.3.0-webui-login-brute-force-via-login
Web page

AniWorld-Downloader/src/aniworld/web/auth.py at bb13599d17937fdb4df2df699024bc233f0656f2 · phoenixthrush/AniWorld-Downloader · GitHub

https://github.com/phoenixthrush/AniWorld-Downloader/blob/bb13599d17937fdb4df2df699024bc233f0656f2/src/aniworld/web/auth.py#L239-L256
Web page

AniWorld Downloader WebUI login has no rate limit, so an exposed instance allows unlimited password guesses - HackMD

https://hackmd.io/@haind/aniworld-login-brute-force
GitHub release Patch Available

v.5.3.0

Patch available: phoenixthrush/AniWorld-Downloader v.5.3.0

https://github.com/phoenixthrush/AniWorld-Downloader/releases/tag/v.5.3.0
GitHub commit Patch Available

commit 3c070bd10665 (phoenixthrush/AniWorld-Downloader)

Patch available: phoenixthrush/AniWorld-Downloader v.5.3.0 (contains commit 3c070bd10665)

https://github.com/phoenixthrush/AniWorld-Downloader/commit/3c070bd10665377308a3092e11933681c18a5fd1
Web page

Add rate limiting to basic webui auth · Issue #334 · phoenixthrush/AniWorld-Downloader · GitHub

https://github.com/phoenixthrush/AniWorld-Downloader/issues/334

Vendor Advisories for CVE-2026-108580(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 9× in last 7d / 42× 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.

  1. 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  2. 2026-10-31 16:31 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  3. 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  4. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  5. 2026-10-29 14:57 UTCEG score recompute
  6. 2026-10-29 14:57 UTCGHSA enrichmentGHSA-cwhp-rxhr-43pp · GitHub CVSS 6.5
  7. 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  8. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  9. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  10. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  11. 2026-10-25 14:53 UTCEG score recompute
  12. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  13. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  14. 2026-10-23 08:28 UTCEG score recompute
  15. 2026-10-23 08:28 UTCGHSA enrichmentGHSA-cwhp-rxhr-43pp · GitHub CVSS 6.5
  16. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  17. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  18. 2026-10-20 16:32 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  19. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  20. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  21. 2026-10-18 05:07 UTCEG score recompute
  22. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  23. 2026-10-16 19:44 UTCEG score recompute
  24. 2026-10-16 19:44 UTCGHSA enrichmentGHSA-cwhp-rxhr-43pp · GitHub CVSS 6.5
  25. 2026-10-16 16:40 UTCEPSS rescoreEPSS 0.3% · 17th percentile
Show 17 more
  1. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  2. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  3. 2026-10-13 20:03 UTCEG score recompute
  4. 2026-10-13 20:03 UTCGHSA enrichmentGHSA-cwhp-rxhr-43pp · GitHub CVSS 6.5
  5. 2026-10-13 19:02 UTCEG score recompute
  6. 2026-10-13 19:01 UTCGHSA enrichmentGHSA-cwhp-rxhr-43pp · GitHub CVSS 6.5
  7. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  8. 2026-10-12 16:38 UTCEG score recompute
  9. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  10. 2026-10-11 20:13 UTCEG score recompute
  11. 2026-10-11 17:49 UTCEG score recompute
  12. 2026-10-11 17:49 UTCGHSA enrichmentGHSA-cwhp-rxhr-43pp · GitHub CVSS 6.5
  13. 2026-10-11 14:59 UTCEG score recompute
  14. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  15. 2026-10-10 16:28 UTCEG score recompute
  16. 2026-10-10 16:00 UTCEG score recomputeFirst assessed: 6.5 MEDIUM
  17. 2026-10-10 16:00 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-108580?
CVE-2026-108580 is a medium-severity vulnerability; its CVE record was published on October 10, 2026. AniWorld Downloader before 5.3.0 contains an improper restriction of authentication attempts vulnerability in the WebUI /login POST handler that allows unauthenticated attackers to guess passwords without throttling. Attackers can enumerate usernames through verify_user response timing and…
When was CVE-2026-108580 made public?
CVE-2026-108580 was made public on October 1, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on October 10, 2026. EchelonGraph's copy of the record carries a last-modified date of October 16, 2026; the record at its source may have been updated since.
Is CVE-2026-108580 actively exploited?
CVE-2026-108580 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (18th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-108580?
CVE-2026-108580 has a CVSS base score of 6.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-108580?
A fix for CVE-2026-108580 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-108580 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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