How severe is CVE-2026-40893?

CVE-2026-40893 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability low.

Is CVE-2026-40893 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-40893?

CVE-2026-40893 affects Thecodingmachine Gotenberg. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-40893?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-40893 have an EU (EUVD) identifier?

Yes. CVE-2026-40893 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30307.

When was CVE-2026-40893 published?

CVE-2026-40893 was published on 2026-05-14 and last updated on 2026-06-17.

CVE-2026-40893

CVE-2026-40893 is a high-severity vulnerability in Thecodingmachine Gotenberg with a CVSS 3.x base score of 8.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-73.

Key facts

Severity: High (CVSS 3.x base score 8.2)
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-30307
Weakness: CWE-73
Affected product: Thecodingmachine Gotenberg
Published: 2026-05-14
Last modified: 2026-06-17

Description

Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.31.0, Gotenberg only checks if the tag is exactly FileName, so System:FileName slips right through and ExifTool happily renames the file. This allows remote attackers to move, rename, and change permissions for arbitrary files. This vulnerability is fixed in 8.31.0.

Frequently asked questions

What is CVE-2026-40893?: Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.31.0, Gotenberg only checks if the tag is exactly FileName, so System:FileName slips right through and ExifTool happily renames the file. This allows remote attackers to move, rename, and change permissions for arbitrary files. This vulnerability is fixed in 8.31.0.
How severe is CVE-2026-40893?: CVE-2026-40893 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability low.
Is CVE-2026-40893 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-40893?: CVE-2026-40893 affects Thecodingmachine Gotenberg. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-40893?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-40893 have an EU (EUVD) identifier?: Yes. CVE-2026-40893 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30307.
When was CVE-2026-40893 published?: CVE-2026-40893 was published on 2026-05-14 and last updated on 2026-06-17.

References

https://github.com/gotenberg/gotenberg/security/advisories/GHSA-62p3-hvxx-fxg4

Affected products (1)

cpe:2.3:a:thecodingmachine:gotenberg:*:*:*:*:*:*:*:*

More vulnerabilities in Thecodingmachine Gotenberg

CVE-2026-40281 — Critical (CVSS 10.0): Gotenberg is a Docker-powered stateless API for PDF files. In versions 8.30.1 and earlier, the metadata write endpoint…
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CVE-2020-13451 — Critical (CVSS 9.8): An incomplete-cleanup vulnerability in the Office rendering engine of Gotenberg through 6.2.1 allows an attacker to…
CVE-2020-13450 — Critical (CVSS 9.8): A directory traversal vulnerability in file upload function of Gotenberg through 6.2.1 allows an attacker to upload and…

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