surfio has an out-of-bounds read

CRITICAL 9.8CVE-2026-55211 · GHSA-rcr2-hggw-43wm · PYSEC-2026-3701 · Published 15/09/2026 · updated 30/09/2026

Package	Affected versions	Patched versions
surfio PyPI	`< 0.0.19`	`0.0.19`

Description

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

NVD description

Surfio is a library for reading and writing surface files. Prior to 0.0.19, surfio does not correctly validate size fields in IRAP files, leading to a buffer overflow when untrusted files are parsed. The severity assumes surfio is used to parse untrusted files in a networking context such as a web service. This issue is fixed in version 0.0.19.

References

equinor/surfio security advisory · WEB
equinor/surfio#86 · WEB
equinor/surfio commit 1619750 · WEB
equinor/surfio · PACKAGE
equinor/surfio release 0.0.19 · WEB
equinor/surfio commit e009c0c
pypi.org/project/surfio · PACKAGE
GitHub Advisory GHSA-rcr2-hggw-43wm · ADVISORY
nvd.nist.gov/vuln/detail/CVE-2026-55211 · ADVISORY

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