CVE-2019-8308

HIGH

Flatpak before 1.0.7, and 1.1.x and 1.2.x before 1.2.3, exposes /proc in the apply_extra script sandbox, which allows attackers to modify a host-side executable file.

Affects 8 products across 3 vendors.

CVSS 3.08.2
EPSS0.5%
Percentile39th
PatchUnknown
CVSS Vector — Plain English Requires local access, low complexity, low privileges required, requires user interaction, can impact systems beyond the vulnerable component, full confidentiality impact, full integrity impact, full availability impact.
CWE Weakness Definitions
CWE-668: CWE-668
◆ AI Analysis — automated analysis, not human-reviewed

This vulnerability was disclosed in 2019. A high severity vulnerability affects Debian systems (CVE-2019-8308). No public exploit code is currently available. Isolate affected systems if patching is not feasible.

BSID: BS-2019-GLOBAL-213114-H • Model: rule-based-v1 • Confidence: MEDIUM

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Frequently Asked Questions
What is CVE-2019-8308?
This vulnerability was disclosed in 2019. A high severity vulnerability affects Debian systems (CVE-2019-8308). No public exploit code is currently available. Isolate affected systems if patching is not feasible.
What is the CVSS score for CVE-2019-8308?
CVE-2019-8308 has CVSS 8.2 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H. EPSS: 0.5%.
Is CVE-2019-8308 actively exploited?
No confirmed active exploitation of CVE-2019-8308 as of 2026-05-30.
How do I remediate CVE-2019-8308?
Priority: MEDIUM.
What systems are affected by CVE-2019-8308?
CVE-2019-8308 affects Debian Debian Linux; Flatpak Flatpak; Redhat Enterprise Linux Server, Enterprise Linux Workstation, Enterprise Linux Server Aus, Enterprise Linux Server Eus, Enterprise Linux Server Tus, Enterprise Linux Desktop.
Vulnerability Details
CVE IDCVE-2019-8308
BSIDBS-2019-GLOBAL-213114-H BreachSpider Global ID
CVSS VectorCVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Published2019-02-12
Last Modified2024-11-21
ICS Relevance0%
Weakness (CWE)
CWE-668
SourceNVD
Official Description

Flatpak before 1.0.7, and 1.1.x and 1.2.x before 1.2.3, exposes /proc in the apply_extra script sandbox, which allows attackers to modify a host-side executable file.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

Vulnerability details: Flatpak before 1.0.7, and 1.1.x and 1.2.x before 1.2.3, exposes /proc in the apply_extra script sandbox, which allows attackers to modify a host-side executable file. CVSS vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H.

Exploitation Likelihood: MINIMAL

Affected Products
VendorProductAffected Versions
Debian Debian Linux 9.0 10.0
Flatpak Flatpak < 1.0.7 ≥ 1.1.0, ≤ 1.1.3 ≥ 1.2.0, ≤ 1.2.3
Redhat Enterprise Linux Server 7.0
Redhat Enterprise Linux Workstation 7.0
Redhat Enterprise Linux Server Aus 7.6
Redhat Enterprise Linux Server Eus 7.6
Redhat Enterprise Linux Server Tus 7.6
Redhat Enterprise Linux Desktop 7.0
Remediation

No official vendor advisory link on record. See the CVE record →

Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 2802 Days
CISA known-exploitedNot in KEV catalog
Public ExploitNot confirmed
PoC CodeNot confirmed
AI Enrichment Record — provenance & audit hash
Modelrule-based-v1
ConfidenceMEDIUM
Enriched At2026-05-24
SHA-512 Audit Hash3395eaf4105f0181b8d47cd00706df8c4ce6cb8260f47d7190dea30750b44c0e8d5c71299326cc53bac51f28c8bd42964b01aa87670893569bc97a69ed511ae6
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