Plane is an open-source project management tool. Prior to 1.4.0, Plane's magic-code email login uses a six-digit numeric OTP with approximately 20 bits of entropy. The verifier has no per-code failed-attempt counter, and an incorrect code does not increment a counter, invalidate the Redis entry, or lock the email address. The verifier extends django.views.View rather than DRF's APIView, so the configured AnonRateThrottle limit does not apply. The middleware stack also contains no Django-level rate limiter such as django-ratelimit, django-axes, or an IP-throttling middleware. This vulnerability is fixed in 1.4.0.
CVE-2026-105638
CRITICALPre-NVD 9.19.1—Trending — 3 sources updated this weekElevated
EchelonGraph scoreMEDIUM confidence
This critical-severity CVE scores 9.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (30th percentile of EPSS-scored CVEs). 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
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 9.1Exploit: Elevated riskExposed services: Not assessed
A fix is available — apply it.
- CVSS v3
- 9.1
- EG Score
- 9.1CRITICALmedium confidence
- EG Risk
- 72EG Risk 72/100CISA SSVC
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 computedSeverity91% × 45%Exploitation40% × 40%Automatability100% × 15%CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- 0.4%
- EPSS %ILE
- 30th
- KEV
- Not listed
CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
October 5, 2026
Last Modified
October 5, 2026
Advisory Details (4)
Auto-updated Oct 5, 2026🔬 Proof of concept available. Patch available. Sources: github_release, github, github_pr, github_commit.
github_release Patch Available
v1.4.0
Patch available: makeplane/plane v1.4.0
https://github.com/makeplane/plane/releases/tag/v1.4.0github_commit
commit b1c78fe4c832 (makeplane/plane)
Fix landed in makeplane/plane commit b1c78fe4c832 — awaiting tagged release
https://github.com/makeplane/plane/commit/b1c78fe4c832e188454840eb38fd20cd05ef8b0agithub_pr
fix(api): rate-limit magic-code verify, bound per-token attempts (GHSA-9pvm-fcf6-9234)
Fix merged in makeplane/plane PR #9130 on 2026-06-01 — awaiting tagged release
https://github.com/makeplane/plane/pull/9130githubMentions a patch (unverified)🟡 PoC Available
Magic-code verifier endpoint has no rate limit, enabling 6-digit OTP brute force · Advisory · makeplane/plane · GitHub
https://github.com/makeplane/plane/security/advisories/GHSA-mqjv-rwgv-4gxqWeakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 13× in last 7d / 13× 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.
- 2026-10-09 23:25 UTCEG score recompute
- 2026-10-09 20:06 UTCEPSS rescore
- 2026-10-08 19:40 UTCEG score recompute
- 2026-10-08 17:11 UTCEPSS rescore
- 2026-10-08 02:49 UTCEG score recompute
- 2026-10-07 23:47 UTCEPSS rescore
- 2026-10-06 19:11 UTCEG score recompute
- 2026-10-06 15:17 UTCEPSS rescore
- 2026-10-05 23:22 UTCEG score recompute
- 2026-10-05 19:24 UTCEG score recompute
- 2026-10-05 19:01 UTCEG score recompute
- 2026-10-05 18:26 UTCEG score recompute
- 2026-10-05 18:25 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2026-105638?
CVE-2026-105638 is a critical vulnerability published on October 5, 2026. Plane is an open-source project management tool. Prior to 1.4.0, Plane's magic-code email login uses a six-digit numeric OTP with approximately 20 bits of entropy. The verifier has no per-code failed-attempt counter, and an incorrect code does not increment a counter, invalidate the Redis entry, or…
When was CVE-2026-105638 disclosed?
CVE-2026-105638 was first published on October 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-105638 actively exploited?
CVE-2026-105638 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (30th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-105638?
CVE-2026-105638 has a CVSS base score of 9.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-105638?
A fix for CVE-2026-105638 is available: update to the fixed version the vendor names in its advisory.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-105638
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