CVE-2026-79919

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 70% of all CVEs by exploit prediction. 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
Trending — 3 sources updated this week
6.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.3Exploit: None knownExposed: 0

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

MaxKB is an open-source AI assistant for enterprise. Prior to version 2.10.6-lts, function-library code running under the LD_PRELOAD sandbox can invoke ctypes.CDLL from an importlib.abc.MetaPathFinder callback so the dlopen call-stack heuristic sees a Python import frame, then use unhooked dlsym with RTLD_NEXT to resolve glibc's real syscall and bypass the sandbox syscall blacklist. An authenticated workspace member can consequently read or write files, execute processes, or access networks as the sandbox user. This issue is fixed in version 2.10.6-lts.

CVSS v3
6.3
EG Score
6.3(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity63% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
30%
KEV
Not listed

Published

September 21, 2026

Last Modified

September 22, 2026

Advisory Details (3)

Auto-updated Sep 21, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github_release, github.
github Patch Available🟡 PoC Available

MaxKB function-library sandbox escape: dlopen stack-check bypass via importlib meta-path callbacks and unhooked dlsym(RTLD_NEXT) · Advisory · 1Panel-dev/MaxKB · GitHub

https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-6h35-c779-4v37
github_release Patch Available

Release v2.10.6-lts (1Panel-dev/MaxKB)

Patch available: 1Panel-dev/MaxKB v2.10.6-lts

https://github.com/1Panel-dev/MaxKB/releases/tag/v2.10.6-lts
github_commit Patch Available

commit d4bd22af8ba1 (1Panel-dev/MaxKB)

Patch available: 1Panel-dev/MaxKB v2.10.6-lts (contains commit d4bd22af8ba1)

https://github.com/1Panel-dev/MaxKB/commit/d4bd22af8ba14a9dea317f9034332fec4e964697

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 10× 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. 2026-09-25 09:47 UTCEG score recompute
  2. 2026-09-24 14:04 UTCEPSS rescore
  3. 2026-09-24 11:59 UTCEG score recompute
  4. 2026-09-23 17:54 UTCEPSS rescore
  5. 2026-09-22 16:22 UTCEG score recompute
  6. 2026-09-22 16:01 UTCEPSS rescore
  7. 2026-09-22 15:45 UTCEG score recompute
  8. 2026-09-21 21:22 UTCEG score recompute
  9. 2026-09-21 20:58 UTCEG score recompute
  10. 2026-09-21 20:57 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-79919?
CVE-2026-79919 is a medium vulnerability published on September 21, 2026. MaxKB is an open-source AI assistant for enterprise. Prior to version 2.10.6-lts, function-library code running under the LDPRELOAD sandbox can invoke ctypes.CDLL from an importlib.abc.MetaPathFinder callback so the dlopen call-stack heuristic sees a Python import frame, then use unhooked dlsym…
When was CVE-2026-79919 disclosed?
CVE-2026-79919 was first published in the National Vulnerability Database on September 21, 2026, with the most recent update on September 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-79919 actively exploited?
CVE-2026-79919 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 70.3% of all scored CVEs.
What is the CVSS score of CVE-2026-79919?
CVE-2026-79919 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-79919?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-79919, 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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