Answer in brief
CVE-2026-55211 records a Critical severity (CVSS 9.8) vulnerability in surfio IRAP header size fields cause out-of-bounds reads. The current sources do not mark it as known exploited. The current feed maps equinor/surfio (generic), surfio (pip), surfio (pypi). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps equinor/surfio (generic), surfio (pip), surfio (pypi). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| equinor/surfiogeneric | < 0.0.19 | Not reported |
| surfiopip | <0.0.19 | 0.0.19 |
| surfiopypi | >=0 <0.0.19 | 0.0.19 |
Published upstream
Sep 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 18, 2026
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.
Quoted source text, attributed separately from HOL analysis.