CVE-2026-42285— GoBGP: Panic in AdjRib.Update via malformed BGP Update message (Nil Pointer Dereference)
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I. Basic Information for CVE-2026-42285
Vulnerability Information
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Vulnerability Title
GoBGP: Panic in AdjRib.Update via malformed BGP Update message (Nil Pointer Dereference)
Source: NVD (National Vulnerability Database)
Vulnerability Description
GoBGP is an open source Border Gateway Protocol (BGP) implementation in the Go Programming Language. In version 4.4.0, an unauthenticated remote BGP peer can trigger a fatal panic in GoBGP by sending a specially crafted BGP UPDATE message. When the server receives a message with inconsistent attribute lengths, it improperly handles the internal state transition to a "withdraw" action, leading to a nil pointer dereference in the AdjRib.Update function. This causes the entire GoBGP process to crash, resulting in a complete loss of service availability. This issue has been patched in version 4.5.0.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
空指针解引用
Source: NVD (National Vulnerability Database)
Vulnerability Title
GoBGP 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GoBGP是osrg开源的一种开源的边界网关协议（BGP）实现。 GoBGP 4.4.0版本存在代码问题漏洞，该漏洞源于未经身份验证的远程BGP对等体发送特制BGP UPDATE消息，服务器处理不一致属性长度时内部状态转换不当，导致AdjRib.Update函数中空指针取消引用，可能导致整个GoBGP进程崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-42285
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Same Patch Batch · osrg · 2026-05-07 · 3 CVEs total
| CVE-2026-41643 | 7.5 HIGH | GoBGP: Remote Denial of Service (Panic) in UpdatePathAttrs4ByteAs via Malformed BGP UPDATE |
| CVE-2026-41642 | 7.5 HIGH | GoBGP: Remote Denial of Service (Panic) via Malformed Well-known Path Attribute |
IV. Related Vulnerabilities
Same product: gobgp
- CVE-2026-41643
GoBGP: Remote Denial of Service (Panic) in UpdatePathAttrs4B - CVE-2026-41642
GoBGP: Remote Denial of Service (Panic) via Malformed Well-k - CVE-2026-7737
osrg GoBGP BMP Parser bmp.go BMPStatisticsReport.ParseBody o - CVE-2026-7736
osrg GoBGP mrt.go parseRibEntry integer underflow - CVE-2026-7735
osrg GoBGP AIGP Attribute bgp.go PathAttributeAigp.DecodeFro
Same vendor: osrg
- CVE-2026-41643
GoBGP: Remote Denial of Service (Panic) in UpdatePathAttrs4B - CVE-2026-41642
GoBGP: Remote Denial of Service (Panic) via Malformed Well-k - CVE-2026-7737
osrg GoBGP BMP Parser bmp.go BMPStatisticsReport.ParseBody o - CVE-2026-7736
osrg GoBGP mrt.go parseRibEntry integer underflow - CVE-2026-7735
osrg GoBGP AIGP Attribute bgp.go PathAttributeAigp.DecodeFro
Same weakness: CWE-476
- CVE-2026-8252
Open5GS SMF smf_nsmf_handle_create_data_in_hsmf null pointer - CVE-2026-7259
Null pointer dereference in php_mb_check_encoding() via mb_e - CVE-2026-7262
NULL pointer dereference in SOAP apache:Map decoder with mis - CVE-2026-42183
Argo Workflows: SSO RBAC Delegation Nil Pointer Dereference - CVE-2026-6666
PgBouncer crash in kill_pool_logins_server_error
V. Comments for CVE-2026-42285
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