How severe is CVE-2026-40086?

CVE-2026-40086 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-40086 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-40086?

CVE-2026-40086 affects Danielgatis Rembg. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-40086?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-40086 have an EU (EUVD) identifier?

Yes. CVE-2026-40086 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21492.

When was CVE-2026-40086 published?

CVE-2026-40086 was published on 2026-04-10 and last updated on 2026-06-17.

CVE-2026-40086

CVE-2026-40086 is a medium-severity vulnerability in Danielgatis Rembg with a CVSS 3.x base score of 5.3. 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-22.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-21492
Weakness: CWE-22
Affected product: Danielgatis Rembg
Published: 2026-04-10
Last modified: 2026-06-17

Description

Rembg is a tool to remove images background. Prior to 2.0.75, a path traversal vulnerability in the rembg HTTP server allows unauthenticated remote attackers to read arbitrary files from the server's filesystem. By sending a crafted request with a malicious model_path parameter, an attacker can force the server to attempt loading any file as an ONNX model, revealing file existence, permissions, and potentially file contents through error messages. This vulnerability is fixed in 2.0.75.

Frequently asked questions

What is CVE-2026-40086?: Rembg is a tool to remove images background. Prior to 2.0.75, a path traversal vulnerability in the rembg HTTP server allows unauthenticated remote attackers to read arbitrary files from the server's filesystem. By sending a crafted request with a malicious model_path parameter, an attacker can force the server to attempt loading any file as an ONNX model, revealing file existence, permissions, and potentially file contents through error messages. This vulnerability is fixed in 2.0.75.
How severe is CVE-2026-40086?: CVE-2026-40086 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-40086 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-40086?: CVE-2026-40086 affects Danielgatis Rembg. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-40086?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-40086 have an EU (EUVD) identifier?: Yes. CVE-2026-40086 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21492.
When was CVE-2026-40086 published?: CVE-2026-40086 was published on 2026-04-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:danielgatis:rembg:*:*:*:*:*:*:*:*

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