osrg GoBGP up to 4.3.0 SRv6 L3 Service prefix_sid.go SRv6L3ServiceAttribute.DecodeFromBytes data denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability has been found in osrg GoBGP up to 4.3.0 and classified as problematic. Affected is the function SRv6L3ServiceAttribute.DecodeFromBytes of the file pkg/packet/bgp/prefix_sid.go of the component SRv6 L3 Service. Performing a manipulation of the argument data results in denial of service. This vulnerability is cataloged as CVE-2026-7734. It is possible to initiate the attack remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic has been found in osrg GoBGP up to 4.3.0. This affects the function SRv6L3ServiceAttribute.DecodeFromBytes of the file pkg/packet/bgp/prefix_sid.go of the component SRv6 L3 Service. The manipulation of the argument data with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-7734. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading to version 4.4.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch f9f7b55ec258e514be0264871fa645a2c3edad11 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: GoBGP 4.4.0
Patch: f9f7b55ec258e514be0264871fa645a2c3edad11

Timelineinfo

05/03/2026 Advisory disclosed
05/03/2026 +0 days VulDB entry created
05/03/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: f9f7b55ec258e514be0264871fa645a2c3edad11
Status: Confirmed

CVE: CVE-2026-7734 (🔒)
GCVE (CVE): GCVE-0-2026-7734
GCVE (VulDB): GCVE-100-360909

Entryinfo

Created: 05/03/2026 18:21
Changes: 05/03/2026 18:21 (60)
Complete: 🔍
Submitter: rensiru
Cache ID: 216::103

Submitinfo

Accepted

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