GPAC svg_attributes.c svg_parse_strings/gf_svg_parse_attribute buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability was found in GPAC. It has been rated as critical. This affects the function svg_parse_strings/gf_svg_parse_attribute of the file src/scenegraph/svg_attributes.c. The manipulation leads to buffer overflow. This vulnerability is listed as CVE-2026-39103. There is no available exploit. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in GPAC (version unknown) and classified as critical. This issue affects the function svg_parse_strings/gf_svg_parse_attribute of the file src/scenegraph/svg_attributes.c. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Buffer Overflow vulnerability in GPAC before commit v391dc7f4d234988ea0bc3cc294eb725eddf8f702 allows an attacker to cause a denial of service via the src/scenegraph/svg_attributes.c, svg_parse_strings(), gf_svg_parse_attribute()

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-39103 since 04/06/2026. The exploitation is known to be easy. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 312302 (Linux Distros Unpatched Vulnerability : CVE-2026-39103), which helps to determine the existence of the flaw in a target environment.

Applying the patch 391dc7f4d234988ea0bc3cc294eb725eddf8f702 is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at Tenable (312302). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

ADP CISA Base Score: 5.5
ADP CISA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 312302
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-39103

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: 391dc7f4d234988ea0bc3cc294eb725eddf8f702

Timelineinfo

04/06/2026 CVE reserved
05/05/2026 +29 days Advisory disclosed
05/05/2026 +0 days VulDB entry created
06/01/2026 +27 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 3506
Status: Confirmed

CVE: CVE-2026-39103 (🔒)
GCVE (CVE): GCVE-0-2026-39103
GCVE (VulDB): GCVE-100-361193

Entryinfo

Created: 05/05/2026 19:07
Updated: 06/01/2026 04:42
Changes: 05/05/2026 19:07 (57), 05/06/2026 14:05 (2), 06/01/2026 04:42 (10)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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