CVE-2026-0558

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 64% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Elevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2%CVSS: 9.8Exploit: Elevated riskExposed: 0

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

A vulnerability in parisneo/lollms, up to and including version 2.2.0, allows unauthenticated users to upload and process files through the /api/files/extract-text endpoint. This endpoint does not enforce authentication, unlike other file-related endpoints, and lacks the Depends(get_current_active_user) dependency. This issue can lead to denial of service (DoS) through resource exhaustion, information disclosure, and violation of the application's documented security policies.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: Track

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
Severity98% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
2%
EPSS %ILE
79%
KEV
Not listed

Published

March 29, 2026

Last Modified

June 17, 2026

Advisory Details (2)

Auto-updated Sep 15, 2026
Patch available. Sources: github_commit.
generic

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https://huntr.com/bounties/0a722001-89ce-4c91-b6a6-a55ee5ba2113
github_commit Patch Available

commit a6625dc83786 (parisneo/lollms)

Patch available: parisneo/lollms v2.2.0 (contains commit a6625dc83786)

https://github.com/parisneo/lollms/commit/a6625dc83786ff21d109b0d545ca61b770607ef3

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
lollms1.1.10 ... 2.1.0 (118 versions)2.1.1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 26× 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. 2026-09-13 16:46 UTCEPSS rescore
  2. 2026-09-12 15:00 UTCEPSS rescore
  3. 2026-09-11 14:52 UTCEPSS rescore
  4. 2026-09-11 09:36 UTCEPSS rescore
  5. 2026-09-10 09:34 UTCEPSS rescore
  6. 2026-09-08 22:00 UTCEPSS rescore
  7. 2026-09-07 16:01 UTCEPSS rescore
  8. 2026-09-06 13:47 UTCEPSS rescore
  9. 2026-09-04 05:06 UTCEPSS rescore
  10. 2026-09-02 14:11 UTCEPSS rescore
  11. 2026-09-02 13:04 UTCOSV refresh
  12. 2026-09-01 13:53 UTCEPSS rescore
  13. 2026-09-01 04:39 UTCEPSS rescore
  14. 2026-08-30 19:17 UTCEPSS rescore
  15. 2026-08-30 01:21 UTCEPSS rescore
  16. 2026-08-28 21:40 UTCEPSS rescore
  17. 2026-08-27 14:24 UTCEPSS rescore
  18. 2026-08-25 13:48 UTCEPSS rescore
  19. 2026-08-23 00:19 UTCEPSS rescore
  20. 2026-08-21 23:48 UTCEPSS rescore
  21. 2026-08-20 22:55 UTCEPSS rescore
  22. 2026-08-19 17:03 UTCEPSS rescore
  23. 2026-08-18 13:48 UTCEPSS rescore
  24. 2026-08-16 14:56 UTCEPSS rescore
  25. 2026-08-16 09:50 UTCEG score recompute
Show 68 more
  1. 2026-08-16 09:50 UTCGHSA enrichment
  2. 2026-08-16 02:14 UTCEPSS rescore
  3. 2026-08-15 01:30 UTCEPSS rescore
  4. 2026-08-14 22:55 UTCGHSA enrichment
  5. 2026-08-14 19:09 UTCGHSA enrichment
  6. 2026-08-14 13:44 UTCGHSA enrichment
  7. 2026-08-14 09:58 UTCGHSA enrichment
  8. 2026-08-14 06:11 UTCEG score recompute
  9. 2026-08-14 06:11 UTCGHSA enrichment
  10. 2026-08-13 22:00 UTCEPSS rescore
  11. 2026-08-13 04:03 UTCGHSA enrichment
  12. 2026-08-13 00:17 UTCGHSA enrichment
  13. 2026-08-12 20:30 UTCEG score recompute
  14. 2026-08-12 20:30 UTCGHSA enrichment
  15. 2026-08-12 13:50 UTCEPSS rescore
  16. 2026-08-12 00:44 UTCGHSA enrichment
  17. 2026-08-11 20:41 UTCEG score recompute
  18. 2026-08-11 20:41 UTCGHSA enrichment
  19. 2026-08-11 13:42 UTCEPSS rescore
  20. 2026-08-11 07:28 UTCGHSA enrichment
  21. 2026-08-11 03:41 UTCEG score recompute
  22. 2026-08-11 03:41 UTCGHSA enrichment
  23. 2026-08-10 23:59 UTCEPSS rescore
  24. 2026-08-10 11:59 UTCGHSA enrichment
  25. 2026-08-10 07:56 UTCGHSA enrichment
  26. 2026-08-10 04:10 UTCGHSA enrichment
  27. 2026-08-10 00:23 UTCGHSA enrichment
  28. 2026-08-09 20:36 UTCGHSA enrichment
  29. 2026-08-09 16:49 UTCEG score recompute
  30. 2026-08-09 16:49 UTCGHSA enrichment
  31. 2026-08-09 13:46 UTCEPSS rescore
  32. 2026-08-09 13:03 UTCGHSA enrichment
  33. 2026-08-09 05:45 UTCEG score recompute
  34. 2026-08-09 05:45 UTCGHSA enrichment
  35. 2026-08-08 16:37 UTCEPSS rescore
  36. 2026-08-08 11:25 UTCGHSA enrichment
  37. 2026-08-08 07:03 UTCGHSA enrichment
  38. 2026-08-08 03:16 UTCGHSA enrichment
  39. 2026-08-07 23:29 UTCGHSA enrichment
  40. 2026-08-07 19:43 UTCEG score recompute
  41. 2026-08-07 19:43 UTCGHSA enrichment
  42. 2026-08-07 15:57 UTCGHSA enrichment
  43. 2026-08-06 18:29 UTCEG score recompute
  44. 2026-08-06 18:29 UTCGHSA enrichment
  45. 2026-08-06 13:46 UTCEPSS rescore
  46. 2026-08-06 08:25 UTCGHSA enrichment
  47. 2026-08-06 04:28 UTCGHSA enrichment
  48. 2026-08-06 00:41 UTCEG score recompute
  49. 2026-08-06 00:41 UTCGHSA enrichment
  50. 2026-08-05 19:17 UTCEPSS rescore
  51. 2026-08-04 15:09 UTCEPSS rescore
  52. 2026-08-04 10:38 UTCEPSS rescore
  53. 2026-08-04 03:55 UTCGHSA enrichment
  54. 2026-08-03 23:01 UTCEG score recompute
  55. 2026-08-03 23:01 UTCGHSA enrichment
  56. 2026-08-03 10:35 UTCEPSS rescore
  57. 2026-08-03 02:25 UTCGHSA enrichment
  58. 2026-08-02 22:39 UTCGHSA enrichment
  59. 2026-08-02 18:52 UTCGHSA enrichment
  60. 2026-08-02 15:06 UTCEG score recompute
  61. 2026-08-02 15:06 UTCGHSA enrichment
  62. 2026-08-02 02:26 UTCEPSS rescore
  63. 2026-08-01 04:15 UTCEPSS rescore
  64. 2026-07-30 16:27 UTCEPSS rescore
  65. 2026-07-30 01:30 UTCEPSS rescore
  66. 2026-07-28 15:36 UTCEPSS rescore
  67. 2026-07-27 14:17 UTCEG score recompute
  68. 2026-07-27 14:17 UTCGHSA enrichment

Publicly available exploits

(1 reference)

Working exploit code is in the public domain. Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Nucleihttp/cves/2026/CVE-2026-0558.yaml
    First seen Jan 1, 2026

    LolLMS <= 2.2.0 - Unauthenticated File Upload

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-0558?
CVE-2026-0558 is a critical vulnerability published on March 29, 2026. A vulnerability in parisneo/lollms, up to and including version 2.2.0, allows unauthenticated users to upload and process files through the /api/files/extract-text endpoint. This endpoint does not enforce authentication, unlike other file-related endpoints, and lacks the…
When was CVE-2026-0558 disclosed?
CVE-2026-0558 was first published in the National Vulnerability Database on March 29, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-0558 actively exploited?
CVE-2026-0558 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2% probability of exploitation in the next 30 days, which ranks it in the top 21.1% of all scored CVEs.
What is the CVSS score of CVE-2026-0558?
CVE-2026-0558 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-0558?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-0558, 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.

Dependency Blast Radius

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