PraisonAI is a multi-agent teams system. Prior to 4.6.59, the CODE_TOOLS wrappers keep _workspace_root as None and pass workspace=None to read_file, search_replace, and apply_diff helpers that enforce path containment only for a truthy workspace. An application that exposes code_read_file, code_search_replace, or code_apply_diff before set_workspace can therefore let prompt-influenced calls read and modify files outside the intended project directory, while explicitly configured workspaces remain effective. This vulnerability is fixed in 4.6.59.
CVE-2026-56839
HIGHPre-NVD 7.37.3—Elevated
EchelonGraph scoreMEDIUM confidence
This high-severity CVE scores 7.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 77% 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
7.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.3Exploit: Elevated riskExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.3
- EG Score
- 7.3(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 computedSeverity73% × 45%Exploitation40% × 40%Automatability0% × 15%Action: Watch closely — could escalate to Attend. - EPSS PROB
- 0%
- EPSS %ILE
- 23%
- KEV
- Not listed
Published
June 18, 2026
Last Modified
September 16, 2026
Advisory Details (3)
Auto-updated Sep 14, 2026🔬 Proof of concept available. Patch available. Sources: github, github_commit, github_release.
github_release Patch Available
PraisonAI v4.6.59
Patch available: MervinPraison/PraisonAI v4.6.59
https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.59github_commit Patch Available
commit b4270173d412 (MervinPraison/PraisonAI)
Patch available: MervinPraison/PraisonAI v4.6.143 (contains commit b4270173d412)
https://github.com/MervinPraison/PraisonAI/commit/b4270173d4123fb1ee8910588f0896668ee21b59github Patch Available🟡 PoC Available
Code Agent Tools Fail Open Without a Workspace Boundary · Advisory · MervinPraison/PraisonAI · GitHub
https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-gcq3-mfvh-3x25Vendor Advisories for CVE-2026-56839(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)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| praisonai | 0.0.1 ... 4.6.9 (749 versions) | 4.6.59 | — |
Weakness Classification(3)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 7× in last 7d / 7× 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.
- 2026-09-18 19:28 UTCEPSS rescore
- 2026-09-17 19:31 UTCEPSS rescore
- 2026-09-16 14:08 UTCEPSS rescore
- 2026-09-16 13:47 UTCEG score recompute
- 2026-09-16 05:15 UTCEPSS rescore
- 2026-09-14 18:09 UTCEG score recompute
- 2026-09-14 16:27 UTCEG score recompute
- 2026-07-30 22:30 UTCEG score recompute
- 2026-07-26 18:44 UTCEG score recompute
- 2026-07-23 03:20 UTCEG score recompute
- 2026-07-20 21:33 UTCEG score recompute
Related CVEs(same CWE)
Same CWE
10 shownCWE-22 · CWE-863 · CWE-200
Frequently asked(5)
What is CVE-2026-56839?
CVE-2026-56839 is a high vulnerability published on June 18, 2026. PraisonAI is a multi-agent teams system. Prior to 4.6.59, the CODETOOLS wrappers keep workspaceroot as None and pass workspace=None to readfile, searchreplace, and applydiff helpers that enforce path containment only for a truthy workspace. An application that exposes codereadfile,…
When was CVE-2026-56839 disclosed?
CVE-2026-56839 was first published in the National Vulnerability Database on June 18, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-56839 actively exploited?
CVE-2026-56839 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 76.6% of all scored CVEs.
What is the CVSS score of CVE-2026-56839?
CVE-2026-56839 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2026-56839?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-56839, 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
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-56839
Is Your Infrastructure Affected by CVE-2026-56839?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.