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Fencer Intel
critical 9.8

CVE-2015-8863 json

Off-by-one error in the tokenadd function in jv_parse.c in jq allows remote attackers to cause a denial of service (crash) via a long JSON-…

published 2016-05-06 10 y ago modified 2026-06-17 4 mo ago also EUVD-2015-8719

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
7.3%
EPSS 7.3% chance of exploitation in 30 days, percentile 94%
public exploits
0
none known

Summary

Off-by-one error in the tokenadd function in jv_parse.c in jq allows remote attackers to cause a denial of service (crash) via a long JSON-encoded number, which triggers a heap-based buffer overflow.

Patch / fix

  • jq_project jq 1.6rc2
  • jqlang jq 1.6rc2
  • jq Debian 14, Debian 13, Debian 12 1.5+dfsg-1.1

debian advisories DEBIAN-CVE-2015-8863

  • jq Ubuntu 14.04 LTS 1.3-1.1ubuntu1.1
  • jq Ubuntu 16.04 LTS 1.5+dfsg-1ubuntu0.1

ubuntu advisories UBUNTU-CVE-2015-8863

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • jq openstack 8, openstack 7, openstack 6 1.3-3.el7ost

red hat advisories RHSA-2016:1106RHSA-2016:1099RHSA-2016:1098

  • jq SLES for SAP 15 SP6, SLES for SAP 15 SP5, SLES for SAP 15 SP4 +11 more 1.7.1-150000.3.25.1
  • jq Linux Micro 6.0 1.7.1-1.1

suse advisories SUSE-SU-2026:4275-1SUSE-SU-2026:23873-1

  • jq openSUSE Tumbleweed 1.5-3.3

opensuse advisories openSUSE-SU-2024:10409-1

  • jq CBL-Mariner 2.0 1.5-6

azure linux advisories AZL-6504

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2015-8863 updated cvss 4.4

jq: heap-buffer-overflow in tokenadd() function

  • Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 jq 1.3-3.el7ost
    fixed: vendor fix RHSA-2016:1098
  • Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 jq 1.3-3.el7ost
    fixed: vendor fix RHSA-2016:1099
  • Red Hat OpenStack Platform 8.0 (Liberty) jq 1.3-3.el7ost
    fixed: vendor fix RHSA-2016:1106
  • Red Hat Enterprise Linux 8 jq Red Hat Enterprise Linux 9 jq Red Hat OpenStack Platform 9 (Mitaka) jq
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

7.27% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added fix version.