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CVE-2026-55211 — Vulnerability in surfio — CVE Details

CRITICAL

surfio has an out-of-bounds read

Published August 18, 2026Updated August 19, 2026Source: osv

Summary

### 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

Advisory Timeline

  • First published August 18, 2026 (55 days ago).
  • Last revised August 19, 2026 — 1 day after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

pip
Update surfio to 0.0.19 or later
pip install "surfio>=0.0.19"

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: pypi (1).

PackageEcosystemAffectedFixed In
surfio
pypi
0.0.0, 0.0.10, 0.0.11, 0.0.12 (+10 more)0.0.19

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-125
    Out-of-bounds ReadMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2026-55211?
surfio has an out-of-bounds read This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2026-55211?
CVE-2026-55211 affects surfio. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-55211 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-rcr2-hggw-43wm
PYSEC-2026-3701

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