Dashboard / CVE-2026-41257

CVE-2026-41257

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 38/100
Published: 2026-05-11 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity No Auth Conf. Impact Integ. Impact

CVSS Vector Breakdown

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

Description

jq is a command-line JSON processor. In 1.8.1 and earlier, the jq bytecode VM's data stack tracks its allocation size in a signed int. When the stack grows beyond ≈1 GiB (via deeply nested generator forks), the doubling arithmetic overflows. The wrapped value is passed to realloc and then used for a memmove with attacker-influenced offsets.

Weakness Classification (2)

Affected Software (1)

VendorProductVersion
jqlang jq < 1.8.1

References & Advisories (1)

Bug Bounty Relevance

38 / 100
✓ No authentication
✓ Low complexity

CVSS Score

6.4 / 10.0 v4.0
CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/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

0.14%
Raw Score 0.001420
Percentile 3.5%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00142
2026-10-28
0.00142

Intelligence Sources

nvd ref →

External Links