CVE-2026-64821

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH confidence

Score 4.3 from GitHub Security Advisory published 2026-07-21. a secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: Elevated riskExposed: 0

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

djangoSIGE through 1.10 (commit a6fe7e8) contains a cross-site request forgery vulnerability that allows unauthenticated attackers to cancel sales or purchase orders on behalf of authenticated users by exploiting order-cancellation logic implemented inside HTTP GET method handlers in CancelarOrcamentoVendaView, CancelarPedidoVendaView, CancelarOrcamentoCompraView, and CancelarPedidoCompraView. Attackers can lure an authenticated victim with change_orcamentovenda or equivalent permissions to a page containing a cross-origin reference such as an img tag pointing to the cancellation endpoint, bypassing CSRF token validation entirely since Django's CsrfViewMiddleware only enforces CSRF checks on unsafe HTTP methods.

CVSS v3
4.3
EG Score
4.3(high)
EG Risk
35(Track)
EG Risk 35/100SSVC: 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
Severity43% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
5%
KEV
Not listed

Published

July 21, 2026

Last Modified

July 23, 2026

Advisory Details (3)

Auto-updated Jul 21, 2026
No patch confirmed yet. Sources: github_pr.
generic

djangoSIGE 1.10 CSRF via GET-based Order Cancellation Views | Advisories | VulnCheck

https://www.vulncheck.com/advisories/djangosige-csrf-via-get-based-order-cancellation-views
github_pr

fix(security): CSRF via GET and user enumeration (CVE-2026-64821, CVE…

Upstream fix in progress (PR #163 · thiagopena/djangoSIGE, state=open)

https://github.com/thiagopena/djangoSIGE/pull/163
generic

pentest-writeups/djangoSIGE-CVE-2026-64821-64822 at main · americooo/pentest-writeups · GitHub

https://github.com/americooo/pentest-writeups/tree/main/djangoSIGE-CVE-2026-64821-64822

Vendor Advisories for CVE-2026-64821(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 19× in last 7d / 33× 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. 2026-08-02 02:27 UTCEPSS rescore
  2. 2026-08-01 13:52 UTCEG score recompute
  3. 2026-08-01 13:52 UTCGHSA enrichment
  4. 2026-08-01 04:16 UTCEPSS rescore
  5. 2026-07-31 12:17 UTCEG score recompute
  6. 2026-07-31 12:17 UTCGHSA enrichment
  7. 2026-07-30 16:28 UTCEPSS rescore
  8. 2026-07-30 10:41 UTCEG score recompute
  9. 2026-07-30 10:41 UTCGHSA enrichment
  10. 2026-07-30 01:30 UTCEPSS rescore
  11. 2026-07-30 01:30 UTCEPSS rescore
  12. 2026-07-29 09:05 UTCGHSA enrichment
  13. 2026-07-28 07:30 UTCEG score recompute
  14. 2026-07-28 07:30 UTCGHSA enrichment
  15. 2026-07-27 14:14 UTCEPSS rescore
  16. 2026-07-27 05:55 UTCEG score recompute
  17. 2026-07-27 05:54 UTCGHSA enrichment
  18. 2026-07-26 04:18 UTCEG score recompute
  19. 2026-07-26 04:18 UTCGHSA enrichment
  20. 2026-07-25 14:18 UTCEPSS rescore
  21. 2026-07-25 14:18 UTCEPSS rescore
  22. 2026-07-24 14:18 UTCEPSS rescore
  23. 2026-07-24 14:18 UTCEPSS rescore
  24. 2026-07-23 14:18 UTCEPSS rescore
  25. 2026-07-23 14:18 UTCEPSS rescore
Show 8 more
  1. 2026-07-23 03:22 UTCEG score recompute
  2. 2026-07-22 22:58 UTCEG score recompute
  3. 2026-07-22 22:58 UTCGHSA enrichment
  4. 2026-07-22 14:08 UTCEPSS rescore
  5. 2026-07-22 14:08 UTCEPSS rescore
  6. 2026-07-21 21:24 UTCEG score recompute
  7. 2026-07-21 20:44 UTCEG score recompute
  8. 2026-07-21 20:43 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-64821?
CVE-2026-64821 is a medium vulnerability published on July 21, 2026. djangoSIGE through 1.10 (commit a6fe7e8) contains a cross-site request forgery vulnerability that allows unauthenticated attackers to cancel sales or purchase orders on behalf of authenticated users by exploiting order-cancellation logic implemented inside HTTP GET method handlers in…
When was CVE-2026-64821 disclosed?
CVE-2026-64821 was first published in the National Vulnerability Database on July 21, 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-2026-64821 actively exploited?
CVE-2026-64821 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 95.3% of all scored CVEs.
What is the CVSS score of CVE-2026-64821?
CVE-2026-64821 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-64821?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-64821, 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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