CVE-2026-103227

GPAC DASH Client dash_client.c gf_dash_resolve_url buffer overflow

5.3 Medium

A weakness has been identified in GPAC up to 26.07.0. Affected by this issue is the function gf_dash_resolve_url of the file src/media_tools/dash_client.c of the component DASH Client. This manipulation causes buffer overflow. The attack is possible to be carried out remotely. Upgrading to version abi-16.26 can resolve this issue. Patch name: 4c8e26f278ff63eec57968f7bc696f604bb0cffd. It is recommended to upgrade the affected component.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Passive

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: Low

Exploit likelihood

0.38%Down 0.1 points since Oct 1, 2026

What each source reports

CVE List Score used 5.3

GPAC DASH Client dash_client.c gf_dash_resolve_url buffer overflow

Record: CVE-2026-103227
CVSS 4.0: 5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
CVSS 3.1: 6.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C
CVSS 3.0: 6.3 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C
CVSS 2.0: 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P/E:ND/RL:OF/RC:C
Weakness: CWE-120, CWE-119
Updated: 2026-11-02

EUVDEUVD-2026-89966 5.3

Record: EUVD-2026-89966
CVSS 4.0: 5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
Updated: 2026-11-02

GitHub AdvisoriesGHSA-w83x-f8q3-9m4w 5.3

A weakness has been identified in GPAC up to 26.07.0. Affected by this issue is the function...

Record: GHSA-w83x-f8q3-9m4w
CVSS 4.0: 5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/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
CVSS 3.1: 6.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Weakness: CWE-119
Updated: 2026-11-02

NVD 5.3

Record: CVE-2026-103227
CVSS 4.0: 5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/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
CVSS 3.1: 6.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
CVSS 2.0: 7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness: CWE-119, CWE-120
Updated: 2026-11-02

OSV 5.3

GPAC DASH Client dash_client.c gf_dash_resolve_url buffer overflow

Record: CVE-2026-103227
CVSS 4.0: 5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
Weakness: CWE-119, CWE-120
Updated: 2026-11-02

OSVUBUNTU-CVE-2026-103227 5.3

Record: UBUNTU-CVE-2026-103227
CVSS 4.0: 5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
CVSS 3.1: 6.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Updated: 2026-11-02

Affected packages

Affected packages
Package	Affected	Fixed
`gpac` Ubuntu:Pro:14.04:LTS	All versions, plus listed versions 0.5.0+svn4288~dfsg1-1ubuntu10.5.0+svn4288~dfsg1-40.5.0+svn4288~dfsg1-4ubuntu10.5.0+svn4288~dfsg1-4ubuntu1+esm10.5.0+svn4288~dfsg1-4ubuntu1+esm2	None known
`gpac` Ubuntu:Pro:16.04:LTS	All versions, plus listed versions 0.5.2-426-gc5ad4e4+dfsg5-1build10.5.2-426-gc5ad4e4+dfsg5-1ubuntu0.10.5.2-426-gc5ad4e4+dfsg5-1ubuntu0.1+esm2	None known
`gpac` Ubuntu:Pro:18.04:LTS	All versions, plus listed versions 0.5.2-426-gc5ad4e4+dfsg5-30.5.2-426-gc5ad4e4+dfsg5-3ubuntu0.10.5.2-426-gc5ad4e4+dfsg5-3ubuntu0.1+esm1	None known
`gpac` Ubuntu:Pro:20.04:LTS	All versions, plus listed versions 0.5.2-426-gc5ad4e4+dfsg5-4ubuntu10.5.2-426-gc5ad4e4+dfsg5-50.5.2-426-gc5ad4e4+dfsg5-5ubuntu0.1~esm2	None known
`gpac` Ubuntu:Pro:22.04:LTS	All versions, plus listed versions 1.0.1+dfsg1-41.0.1+dfsg1-52.0.0+dfsg1-22.0.0+dfsg1-2ubuntu0.1~esm2	None known
`gpac` Ubuntu:Pro:24.04:LTS	All versions, plus listed versions 2.2.1+dfsg1-32.2.1+dfsg1-3.12.2.1+dfsg1-3.1build12.2.1+dfsg1-3.1build22.2.1+dfsg1-3.1ubuntu0.1~esm2	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-103227 is a medium vulnerability (CVSS 5.3) in gpac, published September 30, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.38%, the 32nd percentile. No source names a fixed version.

References

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