Vulnerabilities in pkg:pypi/surfio

PACKAGE
Advisory Identifier: GHSA-rcr2-hggw-43wm
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Advisory Summary

CVE-2026-55211 is a CRITICAL (CVSS 9.8) surfio has an out-of-bounds read vulnerability (CWE-125: Out-of-bounds Read) affecting Surfio libraries in the PyPI ecosystem. The issue involves surfio has an out-of-bounds read. Remediation is available by upgrading affected packages to version 0.0.19.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:pypi/surfio

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:pypi/surfio. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-rcr2-hggw-43wm CVE-2026-55211 CRITICAL surfio has an out-of-bounds read

CVE-2026-55211 at a Glance

CVE Identifier CVE-2026-55211
GHSA Identifier GHSA-rcr2-hggw-43wm
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-125: Out-of-bounds Read
Affected Product Surfio
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 9.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

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 High (I:H)
Availability High (A:H)

How to Fix CVE-2026-55211

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

surfio fixed: 0.0.19 
pip install surfio>=0.0.19
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 surfio

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2026-55211, inspect your installed packages using pip:

pip show surfio

Analyze the terminal output to locate any version of Surfio in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.0.19), your application is affected.

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

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-125: Out-of-bounds Read, where the product reads data past the end, or before the beginning, of the intended buffer. In Surfio, 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

### Impact Prior to version 0.0.19, surfio would not correctly validate size fields in irap files, leading to a buffer overflow . The severity rating assumes that surfio is used to parse untrused files in a networking context such as a web service. ### Patches The bug has been patched in version 0.0.19

CVE-2026-55211 Affected Surfio Versions

1 component(s)
Fixed Versions:
0.0.19
Product / Package Ecosystem Affected Versions Fixed Version
surfio
pypi/surfio
PyPI
< 0.0.19
0.0.19

References

GitHub Advisory / Wiki ADVISORY
https://github.com/equinor/surfio/security/advisories/GHSA-rcr2-hggw-43wm
Surfio Source Repository REPOSITORY
https://github.com/equinor/surfio/pull/86
Security Fix Commit FIX COMMIT
https://github.com/equinor/surfio/commit/1619750bce28e39c4f378d2fb6d28b72380a12aa
Surfio Source Repository REPOSITORY
https://github.com/equinor/surfio
Surfio Release RELEASE
https://github.com/equinor/surfio/releases/tag/0.0.19

Frequently Asked Questions

What is CVE-2026-55211?
CVE-2026-55211 is a security vulnerability in Surfio involving surfio has an out-of-bounds read under CWE-125: Out-of-bounds Read.
Which Surfio versions are affected?
Affected versions include releases prior to 0.0.19 across affected packages: surfio.
What version fixes CVE-2026-55211?
Upgrading to 0.0.19 (or the latest patched release for your respective branch) resolves the vulnerability.
Is surfio affected?
Yes, surfio is affected in releases prior to 0.0.19. Upgrade your dependency to 0.0.19 or later.
What is the CVSS score of CVE-2026-55211?
CVE-2026-55211 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-55211?
CVE-2026-55211 is classified under CWE-125: Out-of-bounds Read (The product reads data past the end, or before the beginning, of the intended buffer.).
How can I check PyPI dependencies for CVE-2026-55211?
Run the dependency tree command: 'pip show surfio'. 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-rcr2-hggw-43wm",
  "modified" : "2026-08-18T20:12:55Z",
  "published" : "2026-08-18T20:12:55Z",
  "aliases" : [ "CVE-2026-55211" ],
  "summary" : "surfio has an out-of-bounds read",
  "details" : "### Impact\nPrior to version 0.0.19, surfio would not correctly validate size fields in irap files, leading to a buffer overflow . The severity rating assumes that surfio is used to parse untrused files in a networking context such as a web service.\n\n\n### Patches\nThe bug has been patched in version 0.0.19",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "surfio"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.0.19"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/equinor/surfio/security/advisories/GHSA-rcr2-hggw-43wm"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/equinor/surfio/pull/86"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/equinor/surfio/commit/1619750bce28e39c4f378d2fb6d28b72380a12aa"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/equinor/surfio"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/equinor/surfio/releases/tag/0.0.19"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-125" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-08-18T20:12:55Z",
    "nvd_published_at" : null
  }
}