CVE-2026-109396

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.23% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 13.9% of scored records. A rank, not a probability.

NVD base score

2.3 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Deferred. NVD last modified this record on 2026-10-13.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-10-12 15:16Z16 DAYS AGO

Last updated

2026-10-13 15:22Z15 DAYS AGO

Reserved

2026-10-12

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

Low (CVSS 2.3)

CNA CVSS vector

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Weaknesses

• CWE-1236Improper Neutralization of Formula Elements in a CSV FileBase

Data version

5.2

Document digest

df6458d49596620848ae82b7748d6fa66b5bd249b4b365e1be79d7704a506267

• github.comGitHub Security Advisory (GHSA-gcgv-f8rf-w2wc)https://github.com/thelia/thelia/security/advisories/GHSA-gcgv-f8rf-w2wcvendor-advisory
• github.comhttps://github.com/thelia/thelia/commit/c00a26f0631ed9de3c4466176db6e808a25034aapatch
• github.comhttps://github.com/thelia/thelia/commit/6e46059225d87565caf4859ec0f764354e82ce95patch
• github.comhttps://github.com/thelia/thelia/blob/3.2.0/core/lib/Thelia/Core/Serializer/Serializer/CSVSerializer.phptechnical-description
• github.comThelia 3.1.2 Release Noteshttps://github.com/thelia/thelia/releases/tag/3.1.2release-notes
• github.comThelia 3.2.1 Release Noteshttps://github.com/thelia/thelia/releases/tag/3.2.1release-notes
• www.vulncheck.comVulnCheck Advisory: Thelia before 3.1.2 and 3.2.x before 3.2.1 CSV Formula Injection via Exportshttps://www.vulncheck.com/advisories/thelia-before-3.1.2-and-3.2-x-before-3.2.1-csv-formula-injection-via-exportsthird-party-advisory