CVE-2026-102811

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-29. A secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.5EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 7.5Exploit: None knownExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

Marmite through 0.4.2 contains missing authentication in the development server endpoints /__marmite__/content, /__marmite__/config, and /__marmite__/file/, allowing unauthenticated attackers to create, modify, and overwrite site content and configuration. Attackers can exploit unsanitized path parameters in handle_create_content and handle_clone_content to write files outside the project directory via directory traversal.

CVSS v3
7.5
EG Score
7.5HIGHhigh confidence
EG Risk
49
EG Risk 49/100CISA 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 computed
Severity75% × 45%
Exploitation1% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high until it ships, then apply the release.
EPSS PROB
0.7%
EPSS %ILE
49th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high until it ships, then apply the release.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (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

September 29, 2026

Last Modified

September 30, 2026

Advisory Details (7)

Auto-updated Sep 29, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
generic

Marmite through 0.4.2 Unauthenticated API Access via Development Server | Advisories | VulnCheck

https://www.vulncheck.com/advisories/marmite-through-0.4.2-unauthenticated-api-access-via-development-server
generic

GitHub - rochacbruno/marmite: Markdown makes sites - A Static Site Generator for Blogs · GitHub

https://github.com/rochacbruno/marmite
github_commit

commit 303a0bf2fff4 (rochacbruno/marmite)

Fix landed in rochacbruno/marmite commit 303a0bf2fff4 — awaiting tagged release

https://github.com/rochacbruno/marmite/commit/303a0bf2fff4302f4164c0c39932fdffc6683ad4
generic

marmite/src/content.rs at 4b2ddbd7595233b2e1d0086e18490fec49705098 · rochacbruno/marmite · GitHub

https://github.com/rochacbruno/marmite/blob/4b2ddbd7595233b2e1d0086e18490fec49705098/src/content.rs#L1300-L1322
generic

marmite/src/content.rs at 4b2ddbd7595233b2e1d0086e18490fec49705098 · rochacbruno/marmite · GitHub

https://github.com/rochacbruno/marmite/blob/4b2ddbd7595233b2e1d0086e18490fec49705098/src/content.rs#L1064-L1075
generic

marmite/src/server.rs at 4b2ddbd7595233b2e1d0086e18490fec49705098 · rochacbruno/marmite · GitHub

https://github.com/rochacbruno/marmite/blob/4b2ddbd7595233b2e1d0086e18490fec49705098/src/server.rs#L455-L475
generic

Path traversal + unauth file write in dev server (--serve) · Issue #554 · rochacbruno/marmite · GitHub

https://github.com/rochacbruno/marmite/issues/554

Vendor Advisories for CVE-2026-102811(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 21× in last 7d / 21× 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. 2026-10-04 12:12 UTCGHSA enrichment
  2. 2026-10-03 23:18 UTCEG score recompute
  3. 2026-10-03 23:18 UTCGHSA enrichment
  4. 2026-10-03 14:25 UTCEPSS rescore
  5. 2026-10-03 10:22 UTCGHSA enrichment
  6. 2026-10-02 21:27 UTCEG score recompute
  7. 2026-10-02 21:27 UTCGHSA enrichment
  8. 2026-10-02 08:28 UTCEG score recompute
  9. 2026-10-02 08:28 UTCGHSA enrichment
  10. 2026-10-01 19:49 UTCEPSS rescore
  11. 2026-10-01 19:33 UTCGHSA enrichment
  12. 2026-10-01 06:39 UTCGHSA enrichment
  13. 2026-09-30 17:45 UTCEG score recompute
  14. 2026-09-30 17:45 UTCGHSA enrichment
  15. 2026-09-30 15:02 UTCEPSS rescore
  16. 2026-09-30 07:25 UTCEG score recompute
  17. 2026-09-30 07:25 UTCGHSA enrichment
  18. 2026-09-29 18:31 UTCEG score recompute
  19. 2026-09-29 18:03 UTCEG score recompute
  20. 2026-09-29 17:29 UTCEG score recompute
  21. 2026-09-29 17:28 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-102811?
CVE-2026-102811 is a high vulnerability published on September 29, 2026. Marmite through 0.4.2 contains missing authentication in the development server endpoints /marmite/content, /marmite/config, and /marmite/file/, allowing unauthenticated attackers to create, modify, and overwrite site content and configuration. Attackers can exploit unsanitized path parameters in…
When was CVE-2026-102811 disclosed?
CVE-2026-102811 was first published on September 29, 2026, with the most recent update on September 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-102811 actively exploited?
CVE-2026-102811 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (49th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-102811?
CVE-2026-102811 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-102811?
An upstream fix for CVE-2026-102811 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-102811 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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