CVE-2026-49948

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-06-09. a secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Elevated
8.1EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 8.1Exploit: Elevated riskExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

Mem0 versions through 0.2.8, fixed in commit ae7f406, contain a missing authorization vulnerability in the self-hosted server component where the POST /configure endpoint modifies global LLM provider and embedder configuration but only verifies authentication via JWT or X-API-Key without validating the caller's role. Any authenticated user holding a distributed API key can redirect all LLM and embedder traffic to an attacker-controlled server, with the malicious configuration persisted to PostgreSQL and surviving server restarts to affect all users and API keys on the instance.

CVSS v3
8.1
EG Score
8.1HIGHmedium confidence
EG Risk
52
EG Risk 52/100

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
Severity81% × 45%
Exploitation40% × 40%
Automatability0% × 15%
EPSS PROB
0.5%
EPSS %ILE
42nd
KEV
Not listed

Published

June 9, 2026

Last Modified

July 23, 2026

Advisory Details (5)

Auto-updated Jun 9, 2026
🔬 Proof of concept available. Upstream fix merged — awaiting tagged release. Sources: github_commit, github_pr.
generic

Mem0 0.2.8 Missing Authorization via POST /configure Endpoint | Advisories | VulnCheck

https://www.vulncheck.com/advisories/mem0-missing-authorization-via-post-configure-endpoint
github_pr

fix(server): harden self-hosted server — pgvector upgrade, admin auth, endpoint security

Fix merged in mem0ai/mem0 PR #5360 on 2026-06-05 — awaiting tagged release

https://github.com/mem0ai/mem0/pull/5360
generic

fix(server): add ownership checks to memory and entity endpoints · Issue #5384 · mem0ai/mem0 · GitHub

https://github.com/mem0ai/mem0/issues/5384
generic🟡 PoC Available

Missing Authorization on POST /configure Allows Any API Key Holder to Hijack Global LLM Configuration · Issue #5127 · mem0ai/mem0 · GitHub

https://github.com/mem0ai/mem0/issues/5127
github_commit

commit ae7f4062652d (mem0ai/mem0)

Fix landed in mem0ai/mem0 commit ae7f4062652d — awaiting tagged release

https://github.com/mem0ai/mem0/commit/ae7f4062652df1376990221101d1adbb0819c973

Vendor Advisories for CVE-2026-49948(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 6× in last 7d / 22× 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 243 total refreshes for this CVE.

  1. 2026-10-06 15:18 UTCEPSS rescore
  2. 2026-10-05 17:43 UTCEPSS rescore
  3. 2026-10-04 23:22 UTCEPSS rescore
  4. 2026-10-03 14:25 UTCEPSS rescore
  5. 2026-10-03 09:39 UTCOSV refresh
  6. 2026-10-01 19:50 UTCEPSS rescore
  7. 2026-09-30 15:03 UTCEPSS rescore
  8. 2026-09-28 13:51 UTCEPSS rescore
  9. 2026-09-27 13:48 UTCEPSS rescore
  10. 2026-09-26 15:59 UTCEPSS rescore
  11. 2026-09-26 00:27 UTCEPSS rescore
  12. 2026-09-23 17:53 UTCEPSS rescore
  13. 2026-09-20 20:16 UTCEPSS rescore
  14. 2026-09-18 19:28 UTCEPSS rescore
  15. 2026-09-16 14:08 UTCEPSS rescore
  16. 2026-09-16 05:15 UTCEPSS rescore
  17. 2026-09-14 04:37 UTCEG score recompute
  18. 2026-09-14 04:37 UTCGHSA enrichment
  19. 2026-09-13 16:47 UTCEPSS rescore
  20. 2026-09-11 14:53 UTCEPSS rescore
  21. 2026-09-10 09:35 UTCEPSS rescore
  22. 2026-09-08 22:01 UTCEPSS rescore
  23. 2026-09-07 16:01 UTCEPSS rescore
  24. 2026-09-06 13:47 UTCEPSS rescore
  25. 2026-09-04 05:06 UTCEPSS rescore
Show 75 more
  1. 2026-09-02 14:12 UTCEPSS rescore
  2. 2026-09-01 13:54 UTCEPSS rescore
  3. 2026-09-01 04:40 UTCEPSS rescore
  4. 2026-08-31 00:56 UTCEG score recompute
  5. 2026-08-31 00:56 UTCGHSA enrichment
  6. 2026-08-30 19:17 UTCEPSS rescore
  7. 2026-08-30 01:22 UTCEPSS rescore
  8. 2026-08-28 21:41 UTCEPSS rescore
  9. 2026-08-26 14:46 UTCEPSS rescore
  10. 2026-08-25 13:49 UTCEPSS rescore
  11. 2026-08-25 00:51 UTCEG score recompute
  12. 2026-08-25 00:51 UTCGHSA enrichment
  13. 2026-08-24 00:21 UTCGHSA enrichment
  14. 2026-08-23 11:15 UTCEG score recompute
  15. 2026-08-23 11:15 UTCGHSA enrichment
  16. 2026-08-23 00:19 UTCEPSS rescore
  17. 2026-08-22 01:32 UTCEG score recompute
  18. 2026-08-22 01:32 UTCGHSA enrichment
  19. 2026-08-21 23:49 UTCEPSS rescore
  20. 2026-08-21 12:24 UTCEG score recompute
  21. 2026-08-21 12:24 UTCGHSA enrichment
  22. 2026-08-20 22:55 UTCEPSS rescore
  23. 2026-08-20 22:25 UTCGHSA enrichment
  24. 2026-08-20 09:19 UTCEG score recompute
  25. 2026-08-20 09:19 UTCGHSA enrichment
  26. 2026-08-19 17:04 UTCEPSS rescore
  27. 2026-08-18 13:48 UTCEPSS rescore
  28. 2026-08-17 13:47 UTCEPSS rescore
  29. 2026-08-17 03:23 UTCEG score recompute
  30. 2026-08-17 03:23 UTCGHSA enrichment
  31. 2026-08-16 14:56 UTCEPSS rescore
  32. 2026-08-16 14:16 UTCEG score recompute
  33. 2026-08-16 14:16 UTCGHSA enrichment
  34. 2026-08-16 02:14 UTCEPSS rescore
  35. 2026-08-16 00:38 UTCGHSA enrichment
  36. 2026-08-15 11:32 UTCEG score recompute
  37. 2026-08-15 11:32 UTCGHSA enrichment
  38. 2026-08-15 01:30 UTCEPSS rescore
  39. 2026-08-14 17:56 UTCGHSA enrichment
  40. 2026-08-14 04:07 UTCEG score recompute
  41. 2026-08-14 04:07 UTCGHSA enrichment
  42. 2026-08-13 22:00 UTCEPSS rescore
  43. 2026-08-13 15:00 UTCGHSA enrichment
  44. 2026-08-13 01:10 UTCEG score recompute
  45. 2026-08-13 01:10 UTCGHSA enrichment
  46. 2026-08-12 13:51 UTCEPSS rescore
  47. 2026-08-12 12:04 UTCGHSA enrichment
  48. 2026-08-11 22:57 UTCEG score recompute
  49. 2026-08-11 22:57 UTCGHSA enrichment
  50. 2026-08-11 09:51 UTCEG score recompute
  51. 2026-08-11 09:51 UTCGHSA enrichment
  52. 2026-08-11 00:00 UTCEPSS rescore
  53. 2026-08-10 20:45 UTCGHSA enrichment
  54. 2026-08-10 06:07 UTCGHSA enrichment
  55. 2026-08-09 17:01 UTCEG score recompute
  56. 2026-08-09 17:01 UTCGHSA enrichment
  57. 2026-08-09 13:46 UTCEPSS rescore
  58. 2026-08-09 03:55 UTCEG score recompute
  59. 2026-08-09 03:55 UTCGHSA enrichment
  60. 2026-08-08 16:37 UTCEPSS rescore
  61. 2026-08-08 14:49 UTCGHSA enrichment
  62. 2026-08-08 01:43 UTCEG score recompute
  63. 2026-08-08 01:43 UTCGHSA enrichment
  64. 2026-08-07 12:36 UTCGHSA enrichment
  65. 2026-08-06 23:31 UTCEG score recompute
  66. 2026-08-06 23:31 UTCGHSA enrichment
  67. 2026-08-06 13:47 UTCEPSS rescore
  68. 2026-08-06 09:17 UTCGHSA enrichment
  69. 2026-08-05 20:11 UTCEG score recompute
  70. 2026-08-05 20:11 UTCGHSA enrichment
  71. 2026-08-05 19:17 UTCEPSS rescore
  72. 2026-08-04 17:15 UTCEG score recompute
  73. 2026-08-04 17:15 UTCGHSA enrichment
  74. 2026-08-04 15:10 UTCEPSS rescore
  75. 2026-08-04 10:39 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-49948?
CVE-2026-49948 is a high vulnerability published on June 9, 2026. Mem0 versions through 0.2.8, fixed in commit ae7f406, contain a missing authorization vulnerability in the self-hosted server component where the POST /configure endpoint modifies global LLM provider and embedder configuration but only verifies authentication via JWT or X-API-Key without validating…
When was CVE-2026-49948 disclosed?
CVE-2026-49948 was first published on June 9, 2026, with the most recent update on July 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-49948 actively exploited?
CVE-2026-49948 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (42nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-49948?
CVE-2026-49948 has a CVSS base score of 8.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-49948?
An upstream fix for CVE-2026-49948 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-49948 are linked in the Vendor Advisories panel on this page.

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