CVE-2024-8796

MEDIUMNVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.3 under NVD CVSS v3. EPSS exploit probability: 0.6% (48th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 5.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Under the default configuration, Devise-Two-Factor versions >= 2.2.0 & < 6.0.0 generate TOTP shared secrets that are 120 bits instead of the 128-bit minimum defined by RFC 4226. Using a shared secret shorter than the minimum to generate a multi-factor authentication code could make it easier for an attacker to guess the shared secret and generate valid TOTP codes.

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
24
EG Risk 24/100CISA SSVC

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
Severity53% × 45%
Exploitation1% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.6%
EPSS %ILE
49th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 17, 2024

Last Modified

September 30, 2024

References (1)

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubunturuby-devise-two-factor (3.1.0-2ubuntu0.1~esm1) @ focal2026-05-23ubuntu

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

(3 across 3 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
ruby-devise-two-factor3.1.0-2, 4.0.0-1, 4.0.0-2, 4.0.0-2~bpo11+1, 4.0.2-1
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
ruby-devise-two-factor4.0.2-1
  • every version on: no fix on record
—
RubyGems(1)
PackageVulnerable rangeFix by version rangeDependents
devise-two-factor1.0.0
  • 4.0.0 up to 6.0.0: fixed in 6.0.0
—

Weakness Classification(1)

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

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 8× in last 7d / 33× 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 186 total refreshes for this CVE.

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

Related CVEs(same product + same CWE)

Same product

2 shown

Debian:11:ruby-devise-two-factor

Frequently asked(5)

What is CVE-2024-8796?
CVE-2024-8796 is a medium vulnerability published on September 17, 2024. Under the default configuration, Devise-Two-Factor versions >= 2.2.0 & < 6.0.0 generate TOTP shared secrets that are 120 bits instead of the 128-bit minimum defined by RFC 4226. Using a shared secret shorter than the minimum to generate a multi-factor authentication code could make it easier for an…
When was CVE-2024-8796 disclosed?
CVE-2024-8796 was first published on September 17, 2024, with the most recent update on September 30, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-8796 actively exploited?
CVE-2024-8796 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (49th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2024-8796?
CVE-2024-8796 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2024-8796?
A fix for CVE-2024-8796 is available: update to the fixed version the vendor names in its advisory.

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