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CVE-2026-128014

CRITICAL 1 PoC
INFO Priority: 0.07 BB Relevance: 79/100
Published: 2026-11-13 Modified: 2026-11-13 First seen: 2026-11-13 Status: active

Attack Surface

Network No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: High
PR: None
UI: None
S: X
AT: Present
VC: High
VI: High
VA: High

Description

FrankenPHP standalone static binaries 1.8.0 before 1.13.2 bundle the PHP brotli extension statically linked with Brotli 1.2.0, whose decoder contains an out-of-bounds write (CVE-2026-111497). Unauthenticated remote attackers can send crafted data to applications that pass it to brotli_uncompress_add() to crash the entire FrankenPHP process, and possibly cause memory disclosure or code execution.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
php frankenphp 1.8.0 < 1.13.2

References & Advisories (2)

Proof of Concept (1)

—
https://github.com/googlesky/CVE-2026-128014
nomi-sec

Bug Bounty Relevance

79 / 100
✓ Network accessible
✓ No authentication
✓ No user interaction
✓ PoC available (1)

CVSS Score

9.2 / 10.0 v4.0
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/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

0.75%
Raw Score 0.007480
Percentile 55.5%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00748
2026-11-13
0.00746

Intelligence Sources

mitre ref →
nvd ref →

External Links