Dashboard / CVE-2026-120499

CVE-2026-120499

HIGH
MEDIUM Priority: 0.04 BB Relevance: 42/100
Published: 2026-11-05 Modified: 2026-11-12 First seen: 2026-11-05 Status: active

Attack Surface

Low Complexity No Auth Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: None
UI: Passive
S: X
AT: None
VC: High
VI: High
VA: High

Description

h5io before 0.2.6 contains a code injection vulnerability in read_hdf5() that allows attackers to execute arbitrary code by supplying a crafted HDF5 file. Attackers can store Python code in a node titled timezone, which _triage_read() passes to eval() with builtins reachable, name an arbitrary module in class or custom-object nodes that _import_class() imports, or place pickled objects in pd_dataframe or pd_series nodes that pandas deserializes on read.

Weakness Classification (2)

Affected Software (2)

VendorProductVersion
h5io h5io 0.1.0 < 0.2.6
h5io h5io 0.1.0 < 0.2.6

References & Advisories (5)

Bug Bounty Relevance

42 / 100
✓ No authentication
✓ Low complexity

CVSS Score

8.5 / 10.0 v4.0
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/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

EPSS — Exploitation Probability

0.42%
Raw Score 0.004230
Percentile 37.2%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00423
2026-11-13
0.00423
2026-11-12
0.00423
2026-11-10
0.00423
2026-11-09
0.00423
2026-11-08
0.00423
2026-11-07
0.00423
2026-11-06
0.00423

Intelligence Sources

mitre ref →
nvd ref →

External Links