Dashboard / CVE-2026-102555

CVE-2026-102555

HIGH
MEDIUM Priority: 0.04 BB Relevance: 76/100
Published: 2026-09-29 Modified: 2026-11-02 First seen: 2026-11-02 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: Low
I: None
A: High

Description

A flaw was found in libsoup. The soup_uri_decode_data_uri() function incorrectly treated base64 data-URI payloads as NUL-terminated strings when calling g_base64_decode_inplace(). If the percent-decoded payload contained embedded NUL bytes, the decoded length could remain uninitialized and be used as the size of the returned GBytes. This can lead to an out-of-bounds read or application crash when processing a crafted data URI.

Weakness Classification (1)

Affected Software (3)

VendorProductVersion
gnome libsoup < 3.7.3
redhat enterprise_linux 9.0
redhat enterprise_linux 10.0

References & Advisories (4)

Bug Bounty Relevance

76 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

8.2 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

EPSS — Exploitation Probability

0.45%
Raw Score 0.004510
Percentile 39.2%
Date 2026-11-02

EPSS Trend

2026-11-02
0.00451
2026-11-01
0.00369

Intelligence Sources

mitre ref →
nvd ref →

External Links