VDB-372570 · CVE-2026-56355 · EUVD-2026-38135

GNU Savane up to 3.17 incorrect behavior order

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.7	$0-$5k	4.80

Summaryinfo

A vulnerability, which was classified as problematic, was found in GNU Savane up to 3.17. Affected by this vulnerability is an unknown functionality. The manipulation results in incorrect behavior order. This vulnerability is known as CVE-2026-56355. It is possible to launch the attack remotely. No exploit is available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability was found in GNU Savane up to 3.17. It has been classified as problematic. Affected is some unknown functionality. The manipulation with an unknown input leads to a incorrect behavior order vulnerability. CWE is classifying the issue as CWE-696. The product performs multiple related behaviors, but the behaviors are performed in the wrong order in ways which may produce resultant weaknesses. This is going to have an impact on confidentiality. CVE summarizes:

GNU Savannah Administration Savane through 3.17 uses untrusted data as part of authorization.

The advisory is available at cgit.git.savannah.gnu.org. This vulnerability is traded as CVE-2026-56355 since 06/20/2026. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at cgit.git.savannah.gnu.org.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-38135). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Savane

Version

License

open-source

Website

Vendor: https://www.gnu.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.7

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 3.7
CNA Vector (MITRE): 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Incorrect behavior order
CWE: CWE-696
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: cgit.git.savannah.gnu.org

Timelineinfo

06/20/2026 CVE reserved
06/21/2026 +1 days Advisory disclosed
06/21/2026 +0 days VulDB entry created
06/21/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: gnu.org

Advisory: cgit.git.savannah.gnu.org
Status: Confirmed

CVE: CVE-2026-56355 (🔒)
GCVE (CVE): GCVE-0-2026-56355
GCVE (VulDB): GCVE-100-372570
EUVD: 🔒

Entryinfo

Created: 06/21/2026 05:43
Updated: 06/21/2026 06:48
Changes: 06/21/2026 05:43 (62), 06/21/2026 06:48 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.