CVE-2025-25301: Rembg Rembg Allows SSRF Vulnerability

MODERATE
Advisory Identifier: GHSA-r5gx-c49x-h878
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CVSS 7.5
CWE-918
Published
Advisory Summary

CVE-2025-25301 is a MODERATE (CVSS 7.5) rembg allows ssrf vulnerability (CWE-918: Server-Side Request Forgery (SSRF)) affecting Rembg libraries in the PyPI ecosystem. The issue involves rembg allows ssrf via /api/remove. Remediation is available in the latest vendor maintenance releases.

CVE-2025-25301 at a Glance

CVE Identifier CVE-2025-25301
GHSA Identifier GHSA-r5gx-c49x-h878
Severity MODERATE
CVSS v3.1 Base Score 7.5
CWE Classification CWE-918: Server-Side Request Forgery (SSRF)
Affected Product Rembg
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2025-25301

To remediate this vulnerability, upgrade all affected Rembg dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

rembg fixed: Latest secure release 
pip install rembg>=Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show rembg

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2025-25301, inspect your installed packages using pip:

pip show rembg

Analyze the terminal output to locate any version of Rembg in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The pip show rembg command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-918: Server-Side Request Forgery (SSRF), where the web server receives a url or similar request from an upstream component and retrieves the contents of this url, but it does not sufficiently ensure that the request is being sent to the expected destination. In Rembg, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Rembg is a tool to remove images background. In Rembg 2.0.57 and earlier, the /api/remove endpoint takes a URL query parameter that allows an image to be fetched, processed and returned. An attacker may be able to query this endpoint to view pictures hosted on the internal network of the rembg server. This issue may lead to Information Disclosure.

CVE-2025-25301 Affected Rembg Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
rembg
pypi/rembg
PyPI
≤ 2.0.57

References

NVD — CVE-2025-25301 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-25301
Rembg Source Repository REPOSITORY
https://github.com/danielgatis/rembg
GitHub Advisory / Wiki ADVISORY
https://securitylab.github.com/advisories/GHSL-2024-161_GHSL-2024-162_rembg

Frequently Asked Questions

What is CVE-2025-25301?
CVE-2025-25301 is a security vulnerability in Rembg involving Rembg allows SSRF via /api/remove under CWE-918: Server-Side Request Forgery (SSRF).
Which Rembg versions are affected?
Affected versions include releases prior to current release patches across affected packages: rembg.
What version fixes CVE-2025-25301?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is rembg affected?
Yes, rembg is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2025-25301?
CVE-2025-25301 has a CVSS v3.1 base score of 7.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2025-25301?
CVE-2025-25301 is classified under CWE-918: Server-Side Request Forgery (SSRF) (The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.).
How can I check PyPI dependencies for CVE-2025-25301?
Run the dependency tree command: 'pip show rembg'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-r5gx-c49x-h878",
  "modified" : "2025-03-11T21:31:02Z",
  "published" : "2025-03-11T21:31:01Z",
  "aliases" : [ "CVE-2025-25301" ],
  "summary" : "Rembg allows SSRF via /api/remove",
  "details" : "Rembg is a tool to remove images background. In Rembg 2.0.57 and earlier, the /api/remove endpoint takes a URL query parameter that allows an image to be fetched, processed and returned. An attacker may be able to query this endpoint to view pictures hosted on the internal network of the rembg server. This issue may lead to Information Disclosure.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/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"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "rembg"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "2.0.57"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-25301"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/danielgatis/rembg"
  }, {
    "type" : "ADVISORY",
    "url" : "https://securitylab.github.com/advisories/GHSL-2024-161_GHSL-2024-162_rembg"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-918" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-03-11T21:31:01Z",
    "nvd_published_at" : "2025-03-03T17:15:14Z"
  }
}