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CVE-2026-41643

GoBGP: Remote Denial of Service (Panic) in UpdatePathAttrs4ByteAs via Malformed BGP UPDATE

7.5 HighFix available

GoBGP is an open source Border Gateway Protocol (BGP) implementation in the Go Programming Language. Prior to version 4.3.0, a remote Denial of Service (DoS) vulnerability exists in GoBGP where a malformed BGP UPDATE message can trigger a runtime error: index out of range panic. This occurs during the processing of 4-byte AS attributes when the message structure causes an internal slice index shift that is not properly handled. This issue has been patched in version 4.3.0.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

0.54%Up 0.4 points since May 8, 2026
90%50%10%1%

What each source reports

CVE List Score used 7.5

GoBGP: Remote Denial of Service (Panic) in UpdatePathAttrs4ByteAs via Malformed BGP UPDATE

GoBGP is an open source Border Gateway Protocol (BGP) implementation in the Go Programming Language. Prior to version 4.3.0, a remote Denial of Service (DoS) vulnerability exists in GoBGP where a malformed BGP UPDATE message can trigger a runtime error: index out of range panic. This occurs during the processing of 4-byte AS attributes when the message structure causes an internal slice index shift that is not properly handled. This issue has been patched in version 4.3.0.

Record
CVE-2026-41643
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-129
Updated
2026-11-02
EUVDEUVD-2026-28352 7.5

GoBGP is an open source Border Gateway Protocol (BGP) implementation in the Go Programming Language. Prior to version 4.3.0, a remote Denial of Service (DoS) vulnerability exists in GoBGP where a malformed BGP UPDATE message can trigger a runtime error: index out of range panic. This occurs during the processing of 4-byte AS attributes when the message structure causes an internal slice index shift that is not properly handled. This issue has been patched in version 4.3.0.

Record
EUVD-2026-28352
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-8rxh-r2p6-7f2q 7.5

GoBGP has Remote Denial of Service (Panic) in UpdatePathAttrs4ByteAs via Malformed BGP UPDATE

Summary

A remote Denial of Service (DoS) vulnerability exists in GoBGP where a malformed BGP UPDATE message can trigger a runtime error: index out of range panic. This occurs during the processing of 4-byte AS attributes when the message structure causes an internal slice index shift that is not properly handled.

Details

The vulnerability is located in internal/pkg/table/message.go within the UpdatePathAttrs4ByteAs function.

When GoBGP processes a BGP UPDATE message containing both an AS_PATH and an AS4_PATH attribute, it attempts to merge or validate them to support 4-byte AS numbers. If the attributes are ordered such that AS4_PATH (Type 17) appears before AS_PATH (Type 2), and the AS4_PATH is deemed invalid/malformed, the code attempts to remove the AS4_PATH attribute from the msg.PathAttributes slice. It appears the crash happens due to an index shift in msg.PathAttributes:

#GoBGP v4.2.0
// Line 112: If AS4_PATH precedes AS_PATH, the deletion causes all subsequent attributes to shift left.
msg.PathAttributes = append(msg.PathAttributes[:as4AttrPos], msg.PathAttributes[as4AttrPos+1:]...)

// Line 206: The stale asAttrPos index is used here.
//The function continues to use the stale index (asAttrPos) to update the AS_PATH. Since the slice length has decreased, accessing the old index leads to a panic.
msg.PathAttributes[asAttrPos] = bgp.NewPathAttributeAsPath(newIntfParams)

This deletion causes all subsequent attributes in the slice to shift left by one position. However, the function continues to use the original asAttrPos index (calculated before the deletion) to access or modify the AS_PATH attribute later at Line 206. Because the slice is now shorter, the "stale" index points out of bounds, triggering a panic and crashing the entire GoBGP process.

PoC

Environment: * GoBGP version: 4.2.0 Configuration: Passive peering enabled. Reproduction Steps: Configure GoBGP with a neighbor (e.g., 192.168.31.195). Send a specially crafted BGP UPDATE hex payload:

ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
00 22 02
00 00                  # Withdrawn Routes Length
00 0b                  # Total Path Attribute Length
40 11 01 02            # AS4_PATH (Type 17, Len 1, Val 02) - Triggers the bug
40 02 04 ff ff de ad   # AS_PATH (Type 2, Len 4)

The GoBGP process will immediately crash with: panic: runtime error: index out of range [1] with length 1.

Impact

Vulnerability Type: Remote Denial of Service (DoS). Impacted Users: Any GoBGP deployment (v4.2.0 and earlier) that accepts BGP UPDATE messages from peers. Since this crash occurs in the FSM (Finite State Machine) handling loop, a single malicious peer or a malformed route propagated through a transit provider can consistently crash the BGP daemon, leading to a complete loss of routing capabilities.

Record
GHSA-8rxh-r2p6-7f2q
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-129
Updated
2026-11-02
NVD 7.5

GoBGP is an open source Border Gateway Protocol (BGP) implementation in the Go Programming Language. Prior to version 4.3.0, a remote Denial of Service (DoS) vulnerability exists in GoBGP where a malformed BGP UPDATE message can trigger a runtime error: index out of range panic. This occurs during the processing of 4-byte AS attributes when the message structure causes an internal slice index shift that is not properly handled. This issue has been patched in version 4.3.0.

Record
CVE-2026-41643
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-129
Updated
2026-11-02
OSV 7.5

GoBGP: Remote Denial of Service (Panic) in UpdatePathAttrs4ByteAs via Malformed BGP UPDATE

GoBGP is an open source Border Gateway Protocol (BGP) implementation in the Go Programming Language. Prior to version 4.3.0, a remote Denial of Service (DoS) vulnerability exists in GoBGP where a malformed BGP UPDATE message can trigger a runtime error: index out of range panic. This occurs during the processing of 4-byte AS attributes when the message structure causes an internal slice index shift that is not properly handled. This issue has been patched in version 4.3.0.

Record
CVE-2026-41643
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-129
Updated
2026-11-02
OSVDEBIAN-CVE-2026-41643 7.5

GoBGP is an open source Border Gateway Protocol (BGP) implementation in the Go Programming Language. Prior to version 4.3.0, a remote Denial of Service (DoS) vulnerability exists in GoBGP where a malformed BGP UPDATE message can trigger a runtime error: index out of range panic. This occurs during the processing of 4-byte AS attributes when the message structure causes an internal slice index shift that is not properly handled. This issue has been patched in version 4.3.0.

Record
DEBIAN-CVE-2026-41643
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
Show 7 moreShow less
OSVGHSA-8rxh-r2p6-7f2q 7.5

GoBGP has Remote Denial of Service (Panic) in UpdatePathAttrs4ByteAs via Malformed BGP UPDATE

Summary

A remote Denial of Service (DoS) vulnerability exists in GoBGP where a malformed BGP UPDATE message can trigger a runtime error: index out of range panic. This occurs during the processing of 4-byte AS attributes when the message structure causes an internal slice index shift that is not properly handled.

Details

The vulnerability is located in internal/pkg/table/message.go within the UpdatePathAttrs4ByteAs function.

When GoBGP processes a BGP UPDATE message containing both an AS_PATH and an AS4_PATH attribute, it attempts to merge or validate them to support 4-byte AS numbers. If the attributes are ordered such that AS4_PATH (Type 17) appears before AS_PATH (Type 2), and the AS4_PATH is deemed invalid/malformed, the code attempts to remove the AS4_PATH attribute from the msg.PathAttributes slice. It appears the crash happens due to an index shift in msg.PathAttributes:

#GoBGP v4.2.0
// Line 112: If AS4_PATH precedes AS_PATH, the deletion causes all subsequent attributes to shift left.
msg.PathAttributes = append(msg.PathAttributes[:as4AttrPos], msg.PathAttributes[as4AttrPos+1:]...)

// Line 206: The stale asAttrPos index is used here.
//The function continues to use the stale index (asAttrPos) to update the AS_PATH. Since the slice length has decreased, accessing the old index leads to a panic.
msg.PathAttributes[asAttrPos] = bgp.NewPathAttributeAsPath(newIntfParams)

This deletion causes all subsequent attributes in the slice to shift left by one position. However, the function continues to use the original asAttrPos index (calculated before the deletion) to access or modify the AS_PATH attribute later at Line 206. Because the slice is now shorter, the "stale" index points out of bounds, triggering a panic and crashing the entire GoBGP process.

PoC

Environment: * GoBGP version: 4.2.0 Configuration: Passive peering enabled. Reproduction Steps: Configure GoBGP with a neighbor (e.g., 192.168.31.195). Send a specially crafted BGP UPDATE hex payload:

ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
00 22 02
00 00                  # Withdrawn Routes Length
00 0b                  # Total Path Attribute Length
40 11 01 02            # AS4_PATH (Type 17, Len 1, Val 02) - Triggers the bug
40 02 04 ff ff de ad   # AS_PATH (Type 2, Len 4)

The GoBGP process will immediately crash with: panic: runtime error: index out of range [1] with length 1.

Impact

Vulnerability Type: Remote Denial of Service (DoS). Impacted Users: Any GoBGP deployment (v4.2.0 and earlier) that accepts BGP UPDATE messages from peers. Since this crash occurs in the FSM (Finite State Machine) handling loop, a single malicious peer or a malformed route propagated through a transit provider can consistently crash the BGP daemon, leading to a complete loss of routing capabilities.

Record
GHSA-8rxh-r2p6-7f2q
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-129
Updated
2026-11-02
OSVUBUNTU-CVE-2026-41643 7.5

GoBGP is an open source Border Gateway Protocol (BGP) implementation in the Go Programming Language. Prior to version 4.3.0, a remote Denial of Service (DoS) vulnerability exists in GoBGP where a malformed BGP UPDATE message can trigger a runtime error: index out of range panic. This occurs during the processing of 4-byte AS attributes when the message structure causes an internal slice index shift that is not properly handled. This issue has been patched in version 4.3.0.

Record
UBUNTU-CVE-2026-41643
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVGO-2026-5266 No score

GoBGP: Remote Denial of Service (Panic) in UpdatePathAttrs4ByteAs via Malformed BGP UPDATE in github.com/osrg/gobgp

GoBGP: Remote Denial of Service (Panic) in UpdatePathAttrs4ByteAs via Malformed BGP UPDATE in github.com/osrg/gobgp

Record
GO-2026-5266
Updated
2026-11-02
OSVopenSUSE-SU-2026:21551-1 No score

Security update for govulncheck-vulndb

This update for govulncheck-vulndb fixes the following issues:

  • Update to version 0.0.20260727T201416 2026-07-27T20:14:16Z (jsc#PED-11136):

Go CVE Numbering Authority IDs added or updated with aliases:

  • GO-2026-5046 CVE-2026-46385 GHSA-w8j3-pq8g-8m7w
  • GO-2026-5047 CVE-2026-46384 GHSA-mc57-h6j3-3hmv
  • GO-2026-5048 GHSA-mx64-mj3q-7prj
  • GO-2026-5051
  • GO-2026-5069 CVE-2026-30246 GHSA-35hp-hqmv-8qg8
  • GO-2026-5074 CVE-2026-45022 GHSA-389r-gv7p-r3rp
  • GO-2026-5105 CVE-2026-41506 GHSA-3xc5-wrhm-f963
  • GO-2026-5116 CVE-2026-44517 GHSA-49p4-px3h-rq49
  • GO-2026-5158 CVE-2026-41178 GHSA-5wrp-cwcj-q835
  • GO-2026-5198 CVE-2026-41642 GHSA-7235-89m6-f4px
  • GO-2026-5208 CVE-2026-40890 GHSA-77fj-vx54-gvh7
  • GO-2026-5266 CVE-2026-41643 GHSA-8rxh-r2p6-7f2q
  • GO-2026-5309 GHSA-c3wq-j5vh-68rc
  • GO-2026-5327 CVE-2026-2303 GHSA-cp6g-7hqx-qxhp
  • GO-2026-5336 CVE-2026-45571 GHSA-crhj-59gh-8x96
  • GO-2026-5346 CVE-2026-52845 GHSA-f59h-q822-g45g
  • GO-2026-5408 GHSA-gx7w-56w6-g48x
  • GO-2026-5426 CVE-2026-39883 GHSA-hfvc-g4fc-pqhx
  • GO-2026-5435 CVE-2026-35206 GHSA-hr2v-4r36-88hr
  • GO-2026-5452 CVE-2026-34783 GHSA-j6v5-g24h-vg4j
  • GO-2026-5463 CVE-2026-8276 GHSA-jcqv-2g3v-gm88
  • GO-2026-5471 CVE-2026-6993 GHSA-jj45-xvq5-rhh9
  • GO-2026-5490 CVE-2026-44740 GHSA-m3xc-h892-ggx6
  • GO-2026-5492 CVE-2026-45135 GHSA-m675-2p33-xv9g
  • GO-2026-5506 CVE-2026-29181 GHSA-mh2q-q3fh-2475
  • GO-2026-5525 CVE-2026-42285 GHSA-p3w2-64xm-833j
  • GO-2026-5543 CVE-2026-32952 GHSA-pjcq-xvwq-hhpj
  • GO-2026-5548 CVE-2026-44166 GHSA-pq7p-mc74-g65w
  • GO-2026-5566 CVE-2026-35205 GHSA-q5jf-9vfq-h4h7
  • GO-2026-5569 GHSA-q76j-gcg9-vxc6
  • GO-2026-5585 CVE-2026-42554 GHSA-qjv7-627w-8qjv
  • GO-2026-5593 CVE-2026-40611 GHSA-qqx8-2xmm-jrv8
  • GO-2026-5595 CVE-2026-52844 GHSA-qrp7-cvwr-j2c6
  • GO-2026-5597 CVE-2026-44973 GHSA-qw64-3x98-g7q2
  • GO-2026-5606 GHSA-r46f-3rpw-hxrv
  • GO-2026-5617 CVE-2026-42306 GHSA-rg2x-37c3-w2rh
  • GO-2026-5660 CVE-2026-52846 GHSA-vcc4-2c75-vc9v
  • GO-2026-5666 CVE-2026-35204 GHSA-vmx8-mqv2-9gmg
  • GO-2026-5684 CVE-2026-42328 GHSA-w239-58x2-q8p5
  • GO-2026-5693 GHSA-w5pp-99ch-qj29
  • GO-2026-5730 GHSA-wwhq-w58m-w29c
  • GO-2026-5736 CVE-2026-44283 GHSA-x35m-3gp4-4fh5
  • GO-2026-5740 CVE-2026-44301 GHSA-x597-9fr4-5857
  • GO-2026-5748 CVE-2026-7482 GHSA-x8qc-fggm-mpqg
  • GO-2026-5750 CVE-2026-7020 GHSA-x99g-8v8j-25j2
  • GO-2026-5774 GHSA-3fxj-6jh8-hvhx
  • GO-2026-5775 GHSA-9g5q-2w5x-hmxf
  • GO-2026-5777 GHSA-rjr7-jggh-pgcp
  • GO-2026-5781
  • GO-2026-5841 GHSA-259r-337f-4rfw
  • GO-2026-5879 CVE-2026-50162 GHSA-8xwf-rjm4-xvhv
  • GO-2026-5880 CVE-2026-50163 GHSA-fxhp-mv3v-67qp
  • GO-2026-5882 CVE-2026-50151 GHSA-jxpm-75mh-9fp7
  • GO-2026-5884 GHSA-vh4v-2xq2-g5cg
  • GO-2026-5885 CVE-2026-48978 GHSA-xf85-363p-868w
  • GO-2026-5886 CVE-2026-44332 GHSA-g5vh-55hw-rxm8
  • GO-2026-5887 CVE-2026-45045 GHSA-gcfq-8gqf-4876
  • GO-2026-5912 CVE-2026-53624 GHSA-gv83-gqw6-9j2c
  • GO-2026-5954 CVE-2026-49838 GHSA-frrj-87jh-2772
  • GO-2026-5955 CVE-2026-49837 GHSA-gjrg-jjr3-56cm
  • GO-2026-5960 CVE-2026-54063 GHSA-h69g-9hx6-f3v4
  • GO-2026-5971 CVE-2026-37462 GHSA-pw7p-7fqv-hpj8
  • GO-2026-5983 CVE-2026-54448 GHSA-q3fv-x8vg-qqm4
  • GO-2026-6000 CVE-2026-50274 GHSA-74j5-xf3v-crq8
  • GO-2026-6058 CVE-2026-58442 GHSA-h2x6-g7q6-344v
  • GO-2026-6059 CVE-2026-58431 GHSA-h56g-4qw7-2mxg
  • GO-2026-6060 CVE-2026-58426 GHSA-hg5r-vq93-9fv6
  • GO-2026-6061 GHSA-hrxh-6v49-42gf
  • GO-2026-6062 CVE-2026-58434 GHSA-j2w3-9c3r-g83q
  • GO-2026-6063 CVE-2026-58417 GHSA-jr5x-6h83-wrxf
  • GO-2026-6064 CVE-2026-55984 GHSA-m932-crvm-gcp5
  • GO-2026-6065 CVE-2026-55982 GHSA-mg4f-x9v4-6h2p
  • GO-2026-6066 CVE-2026-58507 GHSA-p4mj-98mv-xq26
  • GO-2026-6067 CVE-2026-58445 GHSA-pgqf-926r-548m
  • GO-2026-6068 CVE-2026-58427 GHSA-prr9-9mp4-5gp2
  • GO-2026-6069 CVE-2026-58510 GHSA-q423-49rw-g9mh
  • GO-2026-6070 CVE-2026-58432 GHSA-q9pg-jj6x-j9p6
  • GO-2026-6071 CVE-2026-59766 GHSA-qf2f-qh6p-7v89
  • GO-2026-6072 CVE-2026-56750 GHSA-rgv6-xp99-6mgj
  • GO-2026-6073 CVE-2026-58435…
Record
openSUSE-SU-2026:21551-1
Updated
2026-11-02
OSVSUSE-SU-2026:23216-1 No score

Security update for govulncheck-vulndb

This update for govulncheck-vulndb fixes the following issues:

  • Update to version 0.0.20260727T201416 2026-07-27T20:14:16Z (jsc#PED-11136):

Go CVE Numbering Authority IDs added or updated with aliases:

  • GO-2026-5046 CVE-2026-46385 GHSA-w8j3-pq8g-8m7w
  • GO-2026-5047 CVE-2026-46384 GHSA-mc57-h6j3-3hmv
  • GO-2026-5048 GHSA-mx64-mj3q-7prj
  • GO-2026-5051
  • GO-2026-5069 CVE-2026-30246 GHSA-35hp-hqmv-8qg8
  • GO-2026-5074 CVE-2026-45022 GHSA-389r-gv7p-r3rp
  • GO-2026-5105 CVE-2026-41506 GHSA-3xc5-wrhm-f963
  • GO-2026-5116 CVE-2026-44517 GHSA-49p4-px3h-rq49
  • GO-2026-5158 CVE-2026-41178 GHSA-5wrp-cwcj-q835
  • GO-2026-5198 CVE-2026-41642 GHSA-7235-89m6-f4px
  • GO-2026-5208 CVE-2026-40890 GHSA-77fj-vx54-gvh7
  • GO-2026-5266 CVE-2026-41643 GHSA-8rxh-r2p6-7f2q
  • GO-2026-5309 GHSA-c3wq-j5vh-68rc
  • GO-2026-5327 CVE-2026-2303 GHSA-cp6g-7hqx-qxhp
  • GO-2026-5336 CVE-2026-45571 GHSA-crhj-59gh-8x96
  • GO-2026-5346 CVE-2026-52845 GHSA-f59h-q822-g45g
  • GO-2026-5408 GHSA-gx7w-56w6-g48x
  • GO-2026-5426 CVE-2026-39883 GHSA-hfvc-g4fc-pqhx
  • GO-2026-5435 CVE-2026-35206 GHSA-hr2v-4r36-88hr
  • GO-2026-5452 CVE-2026-34783 GHSA-j6v5-g24h-vg4j
  • GO-2026-5463 CVE-2026-8276 GHSA-jcqv-2g3v-gm88
  • GO-2026-5471 CVE-2026-6993 GHSA-jj45-xvq5-rhh9
  • GO-2026-5490 CVE-2026-44740 GHSA-m3xc-h892-ggx6
  • GO-2026-5492 CVE-2026-45135 GHSA-m675-2p33-xv9g
  • GO-2026-5506 CVE-2026-29181 GHSA-mh2q-q3fh-2475
  • GO-2026-5525 CVE-2026-42285 GHSA-p3w2-64xm-833j
  • GO-2026-5543 CVE-2026-32952 GHSA-pjcq-xvwq-hhpj
  • GO-2026-5548 CVE-2026-44166 GHSA-pq7p-mc74-g65w
  • GO-2026-5566 CVE-2026-35205 GHSA-q5jf-9vfq-h4h7
  • GO-2026-5569 GHSA-q76j-gcg9-vxc6
  • GO-2026-5585 CVE-2026-42554 GHSA-qjv7-627w-8qjv
  • GO-2026-5593 CVE-2026-40611 GHSA-qqx8-2xmm-jrv8
  • GO-2026-5595 CVE-2026-52844 GHSA-qrp7-cvwr-j2c6
  • GO-2026-5597 CVE-2026-44973 GHSA-qw64-3x98-g7q2
  • GO-2026-5606 GHSA-r46f-3rpw-hxrv
  • GO-2026-5617 CVE-2026-42306 GHSA-rg2x-37c3-w2rh
  • GO-2026-5660 CVE-2026-52846 GHSA-vcc4-2c75-vc9v
  • GO-2026-5666 CVE-2026-35204 GHSA-vmx8-mqv2-9gmg
  • GO-2026-5684 CVE-2026-42328 GHSA-w239-58x2-q8p5
  • GO-2026-5693 GHSA-w5pp-99ch-qj29
  • GO-2026-5730 GHSA-wwhq-w58m-w29c
  • GO-2026-5736 CVE-2026-44283 GHSA-x35m-3gp4-4fh5
  • GO-2026-5740 CVE-2026-44301 GHSA-x597-9fr4-5857
  • GO-2026-5748 CVE-2026-7482 GHSA-x8qc-fggm-mpqg
  • GO-2026-5750 CVE-2026-7020 GHSA-x99g-8v8j-25j2
  • GO-2026-5774 GHSA-3fxj-6jh8-hvhx
  • GO-2026-5775 GHSA-9g5q-2w5x-hmxf
  • GO-2026-5777 GHSA-rjr7-jggh-pgcp
  • GO-2026-5781
  • GO-2026-5841 GHSA-259r-337f-4rfw
  • GO-2026-5879 CVE-2026-50162 GHSA-8xwf-rjm4-xvhv
  • GO-2026-5880 CVE-2026-50163 GHSA-fxhp-mv3v-67qp
  • GO-2026-5882 CVE-2026-50151 GHSA-jxpm-75mh-9fp7
  • GO-2026-5884 GHSA-vh4v-2xq2-g5cg
  • GO-2026-5885 CVE-2026-48978 GHSA-xf85-363p-868w
  • GO-2026-5886 CVE-2026-44332 GHSA-g5vh-55hw-rxm8
  • GO-2026-5887 CVE-2026-45045 GHSA-gcfq-8gqf-4876
  • GO-2026-5912 CVE-2026-53624 GHSA-gv83-gqw6-9j2c
  • GO-2026-5954 CVE-2026-49838 GHSA-frrj-87jh-2772
  • GO-2026-5955 CVE-2026-49837 GHSA-gjrg-jjr3-56cm
  • GO-2026-5960 CVE-2026-54063 GHSA-h69g-9hx6-f3v4
  • GO-2026-5971 CVE-2026-37462 GHSA-pw7p-7fqv-hpj8
  • GO-2026-5983 CVE-2026-54448 GHSA-q3fv-x8vg-qqm4
  • GO-2026-6000 CVE-2026-50274 GHSA-74j5-xf3v-crq8
  • GO-2026-6058 CVE-2026-58442 GHSA-h2x6-g7q6-344v
  • GO-2026-6059 CVE-2026-58431 GHSA-h56g-4qw7-2mxg
  • GO-2026-6060 CVE-2026-58426 GHSA-hg5r-vq93-9fv6
  • GO-2026-6061 GHSA-hrxh-6v49-42gf
  • GO-2026-6062 CVE-2026-58434 GHSA-j2w3-9c3r-g83q
  • GO-2026-6063 CVE-2026-58417 GHSA-jr5x-6h83-wrxf
  • GO-2026-6064 CVE-2026-55984 GHSA-m932-crvm-gcp5
  • GO-2026-6065 CVE-2026-55982 GHSA-mg4f-x9v4-6h2p
  • GO-2026-6066 CVE-2026-58507 GHSA-p4mj-98mv-xq26
  • GO-2026-6067 CVE-2026-58445 GHSA-pgqf-926r-548m
  • GO-2026-6068 CVE-2026-58427 GHSA-prr9-9mp4-5gp2
  • GO-2026-6069 CVE-2026-58510 GHSA-q423-49rw-g9mh
  • GO-2026-6070 CVE-2026-58432 GHSA-q9pg-jj6x-j9p6
  • GO-2026-6071 CVE-2026-59766 GHSA-qf2f-qh6p-7v89
  • GO-2026-6072 CVE-2026-56750 GHSA-rgv6-xp99-6mgj
  • GO-2026-6073 CVE-2026-58435…
Record
SUSE-SU-2026:23216-1
Updated
2026-11-02
OSVSUSE-SU-2026:23227-1 No score

Security update for govulncheck-vulndb

This update for govulncheck-vulndb fixes the following issues:

  • Update to version 0.0.20260727T201416 2026-07-27T20:14:16Z (jsc#PED-11136):

Go CVE Numbering Authority IDs added or updated with aliases:

  • GO-2026-5046 CVE-2026-46385 GHSA-w8j3-pq8g-8m7w
  • GO-2026-5047 CVE-2026-46384 GHSA-mc57-h6j3-3hmv
  • GO-2026-5048 GHSA-mx64-mj3q-7prj
  • GO-2026-5051
  • GO-2026-5069 CVE-2026-30246 GHSA-35hp-hqmv-8qg8
  • GO-2026-5074 CVE-2026-45022 GHSA-389r-gv7p-r3rp
  • GO-2026-5105 CVE-2026-41506 GHSA-3xc5-wrhm-f963
  • GO-2026-5116 CVE-2026-44517 GHSA-49p4-px3h-rq49
  • GO-2026-5158 CVE-2026-41178 GHSA-5wrp-cwcj-q835
  • GO-2026-5198 CVE-2026-41642 GHSA-7235-89m6-f4px
  • GO-2026-5208 CVE-2026-40890 GHSA-77fj-vx54-gvh7
  • GO-2026-5266 CVE-2026-41643 GHSA-8rxh-r2p6-7f2q
  • GO-2026-5309 GHSA-c3wq-j5vh-68rc
  • GO-2026-5327 CVE-2026-2303 GHSA-cp6g-7hqx-qxhp
  • GO-2026-5336 CVE-2026-45571 GHSA-crhj-59gh-8x96
  • GO-2026-5346 CVE-2026-52845 GHSA-f59h-q822-g45g
  • GO-2026-5408 GHSA-gx7w-56w6-g48x
  • GO-2026-5426 CVE-2026-39883 GHSA-hfvc-g4fc-pqhx
  • GO-2026-5435 CVE-2026-35206 GHSA-hr2v-4r36-88hr
  • GO-2026-5452 CVE-2026-34783 GHSA-j6v5-g24h-vg4j
  • GO-2026-5463 CVE-2026-8276 GHSA-jcqv-2g3v-gm88
  • GO-2026-5471 CVE-2026-6993 GHSA-jj45-xvq5-rhh9
  • GO-2026-5490 CVE-2026-44740 GHSA-m3xc-h892-ggx6
  • GO-2026-5492 CVE-2026-45135 GHSA-m675-2p33-xv9g
  • GO-2026-5506 CVE-2026-29181 GHSA-mh2q-q3fh-2475
  • GO-2026-5525 CVE-2026-42285 GHSA-p3w2-64xm-833j
  • GO-2026-5543 CVE-2026-32952 GHSA-pjcq-xvwq-hhpj
  • GO-2026-5548 CVE-2026-44166 GHSA-pq7p-mc74-g65w
  • GO-2026-5566 CVE-2026-35205 GHSA-q5jf-9vfq-h4h7
  • GO-2026-5569 GHSA-q76j-gcg9-vxc6
  • GO-2026-5585 CVE-2026-42554 GHSA-qjv7-627w-8qjv
  • GO-2026-5593 CVE-2026-40611 GHSA-qqx8-2xmm-jrv8
  • GO-2026-5595 CVE-2026-52844 GHSA-qrp7-cvwr-j2c6
  • GO-2026-5597 CVE-2026-44973 GHSA-qw64-3x98-g7q2
  • GO-2026-5606 GHSA-r46f-3rpw-hxrv
  • GO-2026-5617 CVE-2026-42306 GHSA-rg2x-37c3-w2rh
  • GO-2026-5660 CVE-2026-52846 GHSA-vcc4-2c75-vc9v
  • GO-2026-5666 CVE-2026-35204 GHSA-vmx8-mqv2-9gmg
  • GO-2026-5684 CVE-2026-42328 GHSA-w239-58x2-q8p5
  • GO-2026-5693 GHSA-w5pp-99ch-qj29
  • GO-2026-5730 GHSA-wwhq-w58m-w29c
  • GO-2026-5736 CVE-2026-44283 GHSA-x35m-3gp4-4fh5
  • GO-2026-5740 CVE-2026-44301 GHSA-x597-9fr4-5857
  • GO-2026-5748 CVE-2026-7482 GHSA-x8qc-fggm-mpqg
  • GO-2026-5750 CVE-2026-7020 GHSA-x99g-8v8j-25j2
  • GO-2026-5774 GHSA-3fxj-6jh8-hvhx
  • GO-2026-5775 GHSA-9g5q-2w5x-hmxf
  • GO-2026-5777 GHSA-rjr7-jggh-pgcp
  • GO-2026-5781
  • GO-2026-5841 GHSA-259r-337f-4rfw
  • GO-2026-5879 CVE-2026-50162 GHSA-8xwf-rjm4-xvhv
  • GO-2026-5880 CVE-2026-50163 GHSA-fxhp-mv3v-67qp
  • GO-2026-5882 CVE-2026-50151 GHSA-jxpm-75mh-9fp7
  • GO-2026-5884 GHSA-vh4v-2xq2-g5cg
  • GO-2026-5885 CVE-2026-48978 GHSA-xf85-363p-868w
  • GO-2026-5886 CVE-2026-44332 GHSA-g5vh-55hw-rxm8
  • GO-2026-5887 CVE-2026-45045 GHSA-gcfq-8gqf-4876
  • GO-2026-5912 CVE-2026-53624 GHSA-gv83-gqw6-9j2c
  • GO-2026-5954 CVE-2026-49838 GHSA-frrj-87jh-2772
  • GO-2026-5955 CVE-2026-49837 GHSA-gjrg-jjr3-56cm
  • GO-2026-5960 CVE-2026-54063 GHSA-h69g-9hx6-f3v4
  • GO-2026-5971 CVE-2026-37462 GHSA-pw7p-7fqv-hpj8
  • GO-2026-5983 CVE-2026-54448 GHSA-q3fv-x8vg-qqm4
  • GO-2026-6000 CVE-2026-50274 GHSA-74j5-xf3v-crq8
  • GO-2026-6058 CVE-2026-58442 GHSA-h2x6-g7q6-344v
  • GO-2026-6059 CVE-2026-58431 GHSA-h56g-4qw7-2mxg
  • GO-2026-6060 CVE-2026-58426 GHSA-hg5r-vq93-9fv6
  • GO-2026-6061 GHSA-hrxh-6v49-42gf
  • GO-2026-6062 CVE-2026-58434 GHSA-j2w3-9c3r-g83q
  • GO-2026-6063 CVE-2026-58417 GHSA-jr5x-6h83-wrxf
  • GO-2026-6064 CVE-2026-55984 GHSA-m932-crvm-gcp5
  • GO-2026-6065 CVE-2026-55982 GHSA-mg4f-x9v4-6h2p
  • GO-2026-6066 CVE-2026-58507 GHSA-p4mj-98mv-xq26
  • GO-2026-6067 CVE-2026-58445 GHSA-pgqf-926r-548m
  • GO-2026-6068 CVE-2026-58427 GHSA-prr9-9mp4-5gp2
  • GO-2026-6069 CVE-2026-58510 GHSA-q423-49rw-g9mh
  • GO-2026-6070 CVE-2026-58432 GHSA-q9pg-jj6x-j9p6
  • GO-2026-6071 CVE-2026-59766 GHSA-qf2f-qh6p-7v89
  • GO-2026-6072 CVE-2026-56750 GHSA-rgv6-xp99-6mgj
  • GO-2026-6073 CVE-2026-58435…
Record
SUSE-SU-2026:23227-1
Updated
2026-11-02
OSVUSN-8348-1 No score

gobgp vulnerabilities

It was discovered that GoBGP incorrectly handled certain specially crafted BGP UPDATE messages. A remote attacker could possibly use this issue to cause GoBGP to crash, resulting in a denial of service. (CVE-2026-37461)

Yanlei Wang discovered that GoBGP incorrectly handled certain malformed BGP UPDATE messages containing 4-byte AS attributes. A remote attacker could possibly use this issue to cause GoBGP to crash, resulting in a denial of service. (CVE-2026-41643)

It was discovered that GoBGP incorrectly handled certain malformed BGP UPDATE messages containing SRv6 L3 Service attributes. A remote attacker could possibly use this issue to cause GoBGP to crash, resulting in a denial of service. (CVE-2026-7734)

It was discovered that GoBGP incorrectly handled certain malformed BGP UPDATE messages containing Accumulated IGP (AIGP) attributes. A remote attacker could possibly use this issue to cause GoBGP to crash, resulting in a denial of service. (CVE-2026-7735)

It was discovered that GoBGP incorrectly handled certain malformed Multi- threaded Routing Toolkit (MRT) routing information entries. A remote attacker could possibly use this issue to cause GoBGP to crash, resulting in a denial of service. (CVE-2026-7736)

It was discovered that GoBGP incorrectly handled certain malformed Multi- threaded Routing Toolkit (MRT) headers. A remote attacker could possibly use this issue to cause GoBGP to crash, resulting in a denial of service. (CVE-2026-7737)

Record
USN-8348-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
github.com/osrg/gobgp/v4
Go
 through 4.2.0
4.3.0
gobgp
Debian:12
 All versions, plus listed versions
3.10.0-13.16.0-13.19.0-13.21.0-13.23.0-1
Show 23 moreShow less
3.25.0-13.27.0-13.28.0-13.29.0-13.30.0-13.31.0-13.32.0-13.33.0-13.35.0-13.36.0-13.36.0-24.3.0-14.4.0-14.5.0-14.5.0-1~bpo13+14.6.0-14.6.0-24.6.0-2~bpo13+14.7.0-14.7.0-1~bpo13+14.8.0-14.8.0-1~bpo13+14.8.0-2~exp1
 None known
gobgp
Debian:13
 All versions, plus listed versions
3.36.0-24.3.0-14.4.0-14.5.0-14.5.0-1~bpo13+1
Show 8 moreShow less
4.6.0-14.6.0-24.6.0-2~bpo13+14.7.0-14.7.0-1~bpo13+14.8.0-14.8.0-1~bpo13+14.8.0-2~exp1
 None known
gobgp
Debian:14
 before 4.3.0-1, plus listed versions
3.36.0-2
4.3.0-1
github.com/osrg/gobgp/v4
Go
 before 4.3.0
4.3.0
govulncheck-vulndb
SUSE:Linux Enterprise Server 16.0
From an advisory covering 77 CVEs
 before 0.0.20260727T201416-160000.1.1
0.0.20260727T201416-160000.1.1
govulncheck-vulndb
SUSE:Linux Enterprise Server for SAP applications 16.0
From an advisory covering 77 CVEs
 before 0.0.20260727T201416-160000.1.1
0.0.20260727T201416-160000.1.1
gobgp
Ubuntu:Pro:18.04:LTS
 before 1.29-1ubuntu0.1+esm2, plus listed versions
1.15-11.29-11.29-1ubuntu0.1+esm1
1.29-1ubuntu0.1+esm2
gobgp
Ubuntu:Pro:20.04:LTS
 before 2.12.0-1ubuntu0.1~esm3, plus listed versions
1.33-12.11.0-12.12.0-12.12.0-1ubuntu0.1~esm12.12.0-1ubuntu0.1~esm2
2.12.0-1ubuntu0.1~esm3
gobgp
Ubuntu:Pro:22.04:LTS
 before 2.25.0-3ubuntu0.1+esm4, plus listed versions
2.25.0-22.25.0-32.25.0-3build12.25.0-3ubuntu0.12.25.0-3ubuntu0.1+esm12.25.0-3ubuntu0.1+esm22.25.0-3ubuntu0.1+esm3
2.25.0-3ubuntu0.1+esm4
Show 9 moreShow less
Affected packages
PackageAffectedFixed
gobgp
Ubuntu:Pro:24.04:LTS
 before 3.23.0-1ubuntu0.3+esm4, plus listed versions
3.16.0-1build13.19.0-13.21.0-13.23.0-13.23.0-1ubuntu0.1
Show 6 moreShow less
3.23.0-1ubuntu0.23.23.0-1ubuntu0.2+esm13.23.0-1ubuntu0.33.23.0-1ubuntu0.3+esm13.23.0-1ubuntu0.3+esm23.23.0-1ubuntu0.3+esm3
3.23.0-1ubuntu0.3+esm4
gobgp
Ubuntu:25.10
 All versions, plus listed versions
3.35.0-13.36.0-2
 None known
gobgp
Ubuntu:Pro:26.04:LTS
 before 3.36.0-2ubuntu0.1~esm1, plus listed versions
3.36.0-23.36.0-2build1
3.36.0-2ubuntu0.1~esm1
gobgp
Ubuntu:Pro:18.04:LTS
From an advisory covering 6 CVEs
 before 1.29-1ubuntu0.1+esm2, plus listed versions
1.15-11.29-11.29-1ubuntu0.1+esm1
1.29-1ubuntu0.1+esm2
gobgp
Ubuntu:Pro:20.04:LTS
From an advisory covering 6 CVEs
 before 2.12.0-1ubuntu0.1~esm3, plus listed versions
1.33-12.11.0-12.12.0-12.12.0-1ubuntu0.1~esm12.12.0-1ubuntu0.1~esm2
2.12.0-1ubuntu0.1~esm3
gobgp
Ubuntu:Pro:22.04:LTS
From an advisory covering 6 CVEs
 before 2.25.0-3ubuntu0.1+esm4, plus listed versions
2.25.0-22.25.0-32.25.0-3build12.25.0-3ubuntu0.12.25.0-3ubuntu0.1+esm12.25.0-3ubuntu0.1+esm22.25.0-3ubuntu0.1+esm3
2.25.0-3ubuntu0.1+esm4
gobgp
Ubuntu:Pro:24.04:LTS
From an advisory covering 6 CVEs
 before 3.23.0-1ubuntu0.3+esm4, plus listed versions
3.16.0-1build13.19.0-13.21.0-13.23.0-13.23.0-1ubuntu0.1
Show 6 moreShow less
3.23.0-1ubuntu0.23.23.0-1ubuntu0.2+esm13.23.0-1ubuntu0.33.23.0-1ubuntu0.3+esm13.23.0-1ubuntu0.3+esm23.23.0-1ubuntu0.3+esm3
3.23.0-1ubuntu0.3+esm4
gobgp
Ubuntu:Pro:26.04:LTS
From an advisory covering 6 CVEs
 before 3.36.0-2ubuntu0.1~esm1, plus listed versions
3.36.0-23.36.0-2build1
3.36.0-2ubuntu0.1~esm1
govulncheck-vulndb
openSUSE:Leap 16.0
From an advisory covering 77 CVEs
 before 0.0.20260727T201416-160000.1.1
0.0.20260727T201416-160000.1.1

History

History
RecordedChangedSources
affected, facts
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

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

In short

CVE-2026-41643 is a high vulnerability (CVSS 7.5) in Osrg Gobgp, published April 29, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.54%, the 45th percentile. Fixed in github.com/osrg/gobgp/v4 4.3.0.

References

Show 90 moreShow less
This page doesn't list everything

Left out here: the rest of 3 source descriptions. The JSON record has them.

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