PT-2026-31032 · Emmett · Emmett

Gi0Baro · CVE-2026-39847 · Published 2026-04-07 · Updated 2026-04-09

Positive Technologies (AI Summary)

CVSS v3.1

9.1

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Name of the Vulnerable Software and Affected Versions Emmett versions 2.5.0 through 2.8.0

Description Emmett, a full-stack Python web framework, contains a path traversal flaw in its RSGI static handler for internal assets (/ emmett paths). An attacker can use '../' sequences in requests, such as '/ emmett /../rsgi/handlers.py', to read arbitrary files outside the intended assets directory.

Recommendations Upgrade to version 2.8.1 to resolve this issue.

Exploit

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2026-39847

GHSA-PR46-2V3C-5356

PYSEC-2026-59

Affected Products

Emmett

References · 16

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/39xxx/CVE-2026-39847.json · Exploit
• https://github.com/emmett-framework/emmett/security/advisories/GHSA-pr46-2v3c-5356 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-39847 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2026-59 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-pr46-2v3c-5356 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-39847 · Security Note
• https://github.com/emmett-framework/emmett · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/emmett/PYSEC-2026-59.yaml · Note
• https://twitter.com/pulsepatchio/status/2042072260413149262 · Twitter Post
• https://twitter.com/0dayPublishing/status/2041635758771953868 · Twitter Post
• https://reddit.com/r/VulnMatter/comments/1sft88v/resumen_diario_de_vulnerabilidades_08042026 · Reddit Post
• https://twitter.com/VulmonFeeds/status/2041693809352888692 · Twitter Post
• https://twitter.com/vulert_official/status/2041893028919648387 · Twitter Post
• https://twitter.com/CVEnew/status/2041711861226512860 · Twitter Post
• https://twitter.com/DanielZahoor/status/2041706803432734748 · Twitter Post