CVE-2026-42168

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreHIGH confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-17. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.1Exploit: None knownExposed: 0

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

django-pyas2 through 1.2.3 is vulnerable to OS command injection via the cmd_receive and cmd_send fields on the Partner model. These fields are passed directly to os.system() in pyas2/utils.py without sanitization, allowing an authenticated admin user to execute arbitrary commands on the server when an AS2 message is received or sent.

CVSS v3
9.1
EG Score
9.1(high)
EG Risk
56(Track)
EG Risk 56/100SSVC: 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
Severity91% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
66%
KEV
Not listed

Published

July 17, 2026

Last Modified

July 23, 2026

Advisory Details (3)

Auto-updated Jul 20, 2026
Patch available. Sources: github_release.
generic

vulnerability-research/CVE-2026-42168 at main · m4ty-m/vulnerability-research · GitHub

https://github.com/m4ty-m/vulnerability-research/tree/main/CVE-2026-42168
github_release Patch Available

Release v1.2.3 (abhishek-ram/django-pyas2)

Patch available: abhishek-ram/django-pyas2 v1.2.3

https://github.com/abhishek-ram/django-pyas2/releases/tag/v1.2.3
generic

GitHub - abhishek-ram/django-pyas2: AS2 file transfer Server built on Python and Django. · GitHub

https://github.com/abhishek-ram/django-pyas2

Vendor Advisories for CVE-2026-42168(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 37× in last 7d / 52× 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. 2026-07-29 22:57 UTCGHSA enrichment
  2. 2026-07-29 19:07 UTCGHSA enrichment
  3. 2026-07-29 15:25 UTCGHSA enrichment
  4. 2026-07-29 11:42 UTCGHSA enrichment
  5. 2026-07-29 08:00 UTCGHSA enrichment
  6. 2026-07-29 04:16 UTCGHSA enrichment
  7. 2026-07-29 00:34 UTCGHSA enrichment
  8. 2026-07-28 20:51 UTCGHSA enrichment
  9. 2026-07-28 17:08 UTCEG score recompute
  10. 2026-07-28 17:08 UTCGHSA enrichment
  11. 2026-07-28 15:36 UTCEPSS rescore
  12. 2026-07-28 11:52 UTCGHSA enrichment
  13. 2026-07-28 08:01 UTCGHSA enrichment
  14. 2026-07-28 04:19 UTCGHSA enrichment
  15. 2026-07-28 00:37 UTCGHSA enrichment
  16. 2026-07-27 20:56 UTCGHSA enrichment
  17. 2026-07-27 17:14 UTCEG score recompute
  18. 2026-07-27 17:14 UTCGHSA enrichment
  19. 2026-07-27 14:13 UTCEPSS rescore
  20. 2026-07-27 13:33 UTCGHSA enrichment
  21. 2026-07-27 09:44 UTCGHSA enrichment
  22. 2026-07-27 06:03 UTCGHSA enrichment
  23. 2026-07-27 02:19 UTCGHSA enrichment
  24. 2026-07-26 22:35 UTCGHSA enrichment
  25. 2026-07-26 18:52 UTCGHSA enrichment
Show 27 more
  1. 2026-07-26 15:08 UTCEG score recompute
  2. 2026-07-26 15:08 UTCGHSA enrichment
  3. 2026-07-26 14:54 UTCEPSS rescore
  4. 2026-07-26 14:54 UTCEPSS rescore
  5. 2026-07-26 11:23 UTCEG score recompute
  6. 2026-07-26 11:23 UTCGHSA enrichment
  7. 2026-07-26 04:36 UTCEG score recompute
  8. 2026-07-26 04:36 UTCGHSA enrichment
  9. 2026-07-25 14:18 UTCEPSS rescore
  10. 2026-07-24 14:17 UTCEPSS rescore
  11. 2026-07-23 14:18 UTCEPSS rescore
  12. 2026-07-23 03:11 UTCEG score recompute
  13. 2026-07-23 00:23 UTCEG score recompute
  14. 2026-07-23 00:23 UTCGHSA enrichment
  15. 2026-07-22 14:08 UTCEPSS rescore
  16. 2026-07-21 15:24 UTCEPSS rescore
  17. 2026-07-20 18:38 UTCEG score recompute▲ 9.10
  18. 2026-07-20 18:38 UTCGHSA enrichment
  19. 2026-07-20 18:37 UTCMITRE cvelistV5CVSS v3 → 9.1 · severity → CRITICAL
  20. 2026-07-20 17:08 UTCEPSS rescore
  21. 2026-07-19 14:31 UTCEPSS rescore
  22. 2026-07-19 02:30 UTCEG score recompute
  23. 2026-07-19 02:30 UTCGHSA enrichment
  24. 2026-07-19 02:29 UTCEPSS rescore
  25. 2026-07-17 22:01 UTCNVD update
  26. 2026-07-17 19:50 UTCEG score recompute
  27. 2026-07-17 19:49 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-42168?
CVE-2026-42168 is a critical vulnerability published on July 17, 2026. django-pyas2 through 1.2.3 is vulnerable to OS command injection via the cmdreceive and cmdsend fields on the Partner model. These fields are passed directly to os.system() in pyas2/utils.py without sanitization, allowing an authenticated admin user to execute arbitrary commands on the server when…
When was CVE-2026-42168 disclosed?
CVE-2026-42168 was first published in the National Vulnerability Database on July 17, 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-2026-42168 actively exploited?
CVE-2026-42168 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 34.1% of all scored CVEs.
What is the CVSS score of CVE-2026-42168?
CVE-2026-42168 has a CVSS v3.1 base score of 9.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-42168?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-42168, 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.

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