CVE-2026-71307

HIGHPre-NVD 7.77.7—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.7 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3% (22nd 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, secondary
Elevated
7.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 7.7Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

Lemur manages TLS certificate creation. Prior to 1.9.3, GET /api/1/destinations and GET /api/1/destinations/ relied only on authentication while sibling write handlers required admin_permission. DestinationOutputSchema returned raw options and copied them into pluginOptions without redacting sensitive values. The sftp-destination plugin stored password and privateKeyPass values in plaintext, allowing even a read-only user to retrieve credentials for remote certificate-deployment hosts. The exposed credentials could permit direct access to SFTP systems and TLS material outside the Lemur security boundary. The fix requires administrator permission for destination reads and redacts options marked sensitive. This issue is fixed in version 1.9.3.

CVSS v3
7.7
EG Score
7.7HIGHmedium confidence
EG Risk
51
EG Risk 51/100CISA 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
Severity77% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
22nd
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

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

Exploitation public PoC (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

August 18, 2026

Last Modified

September 8, 2026

Advisory Details (3)

Auto-updated Aug 18, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_commit, github_release.
github_release Patch Available

v1.9.3

Patch available: Netflix/lemur v1.9.3

https://github.com/Netflix/lemur/releases/tag/v1.9.3
github_commit Patch Available

commit 751c970ec42a (Netflix/lemur)

Patch available: Netflix/lemur v1.9.3 (contains commit 751c970ec42a)

https://github.com/Netflix/lemur/commit/751c970ec42a53d00ecc9c6a96e0e51b6737ae53
github Patch Available🟡 PoC Available

Authenticated low-privilege users can read plaintext destination credentials (SFTP password / private-key passphrase) via the destinations API · Advisory · Netflix/lemur · GitHub

https://github.com/Netflix/lemur/security/advisories/GHSA-6c8m-q6g9-vrw3

Vendor Advisories for CVE-2026-71307(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
lemur0.11.0 ... 1.9.2 (20 versions)
  • every version up to 1.9.3: fixed in 1.9.3
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 48× 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. 2026-10-05 06:05 UTCEG score recompute
  2. 2026-10-04 23:22 UTCEPSS rescore
  3. 2026-10-03 17:37 UTCEG score recompute
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  9. 2026-09-30 20:59 UTCEG score recompute
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  18. 2026-09-25 01:25 UTCEG score recompute
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  20. 2026-09-23 17:54 UTCEPSS rescore
  21. 2026-09-22 20:24 UTCEG score recompute
  22. 2026-09-22 06:37 UTCEG score recompute
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  24. 2026-09-20 20:49 UTCEG score recompute
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  1. 2026-09-19 22:09 UTCEG score recompute
  2. 2026-09-18 21:50 UTCEG score recompute
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-17 21:46 UTCEG score recompute
  5. 2026-09-16 21:56 UTCEG score recompute
  6. 2026-09-16 14:08 UTCEPSS rescore
  7. 2026-09-16 10:07 UTCEG score recompute
  8. 2026-09-16 05:15 UTCEPSS rescore
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  11. 2026-09-14 00:25 UTCEG score recompute
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  14. 2026-09-11 16:27 UTCEG score recompute
  15. 2026-09-11 14:53 UTCEPSS rescore
  16. 2026-09-10 18:03 UTCEG score recompute
  17. 2026-09-10 09:35 UTCEPSS rescore
  18. 2026-09-09 08:27 UTCEG score recompute
  19. 2026-09-08 22:01 UTCEPSS rescore
  20. 2026-09-07 16:08 UTCEG score recompute
  21. 2026-09-06 15:53 UTCEG score recompute
  22. 2026-09-06 13:48 UTCEPSS rescore
  23. 2026-09-05 17:29 UTCEG score recompute
  24. 2026-09-04 19:00 UTCEG score recompute
  25. 2026-09-04 07:48 UTCEG score recompute
  26. 2026-09-04 05:07 UTCEPSS rescore
  27. 2026-09-02 21:56 UTCEG score recompute
  28. 2026-09-02 14:12 UTCEPSS rescore
  29. 2026-09-01 21:34 UTCEG score recompute
  30. 2026-09-01 13:54 UTCEPSS rescore
  31. 2026-09-01 10:19 UTCEG score recompute
  32. 2026-09-01 04:40 UTCEPSS rescore
  33. 2026-08-31 00:36 UTCEG score recompute
  34. 2026-08-30 19:17 UTCEPSS rescore
  35. 2026-08-30 02:12 UTCEG score recompute
  36. 2026-08-30 01:22 UTCEPSS rescore
  37. 2026-08-29 03:46 UTCEG score recompute
  38. 2026-08-28 21:42 UTCEPSS rescore
  39. 2026-08-27 19:21 UTCEG score recompute
  40. 2026-08-26 19:03 UTCEG score recompute
  41. 2026-08-26 14:47 UTCEPSS rescore
  42. 2026-08-25 20:39 UTCEG score recompute
  43. 2026-08-25 13:49 UTCEPSS rescore
  44. 2026-08-24 22:00 UTCEG score recompute
  45. 2026-08-24 10:48 UTCEG score recompute
  46. 2026-08-23 01:13 UTCEG score recompute
  47. 2026-08-23 00:19 UTCEPSS rescore
  48. 2026-08-22 02:50 UTCEG score recompute
  49. 2026-08-21 23:49 UTCEPSS rescore
  50. 2026-08-21 04:25 UTCEG score recompute
  51. 2026-08-20 22:56 UTCEPSS rescore
  52. 2026-08-19 18:46 UTCEG score recompute
  53. 2026-08-19 17:04 UTCEPSS rescore
  54. 2026-08-19 07:34 UTCEG score recompute
  55. 2026-08-18 20:22 UTCEG score recompute
  56. 2026-08-18 19:45 UTCEG score recompute
  57. 2026-08-18 19:19 UTCEG score recompute
  58. 2026-08-18 19:18 UTCMITRE cvelistV5first tracked

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-71307?
CVE-2026-71307 is a high vulnerability published on August 18, 2026. Lemur manages TLS certificate creation. Prior to 1.9.3, GET /api/1/destinations and GET /api/1/destinations/ relied only on authentication while sibling write handlers required admin_permission. DestinationOutputSchema returned raw options and copied them into pluginOptions without redacting…
When was CVE-2026-71307 disclosed?
CVE-2026-71307 was first published on August 18, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-71307 actively exploited?
CVE-2026-71307 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (22nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-71307?
CVE-2026-71307 has a CVSS base score of 7.7 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-71307?
A fix for CVE-2026-71307 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-71307 are linked in the Vendor Advisories panel on this page.

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