VulnSocial

CVE-2026-5122Disclosure(osrg / gobgp)

LOWCVSS 6.3 · MEDIUM

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A security flaw has been discovered in osrg GoBGP up to 4.3.0. This affects the function DecodeFromBytes of the file pkg/packet/bgp/bgp.go of the component BGP OPEN Message Handler. Performing a manipulation of the argument domainNameLen results in improper access controls. The attack may be initiated remotely. A high degree of complexity is needed for the attack. The exploitability is reported as difficult. The patch is named 2b09db390a3d455808363c53e409afe6b1b86d2d. It is suggested to install a patch to address this issue.

osrg CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Patch / fix
Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-266CWE-284

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • gobgp

Threat summary

  • 3 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 3 signals
  • Disclosure: 3 classified signals
  • Peaked at 2 mentions on most recent observed day (2026-03-31)
  • 3 total mentions across 2 days

Affected systems

Vendors
osrg
Products
gobgp

Deep dive

Activity timeline3 mentions / 2d
01122Mentions · 2026-03-30: 1Mentions · 2026-03-31: 2Technical Details · 2026-03-30: 1Technical Details · 2026-03-31: 203-3003-31
Signal classification1 categories
Disclosure
3100.0%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-03-301
Disclosure1
2026-03-312
Disclosure2
Full discourse3 posts
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-5122 A security flaw has been discovered in osrg GoBGP up to 4.3.0. This affects the function DecodeFromBytes of the file pkg/packet/bgp/bgp.go of the component BGP OPEN Mes… https://www.cve.org/CVERecord?id=CVE-2026-5122 ----- Traducción: CVE-2026-5122 Se … http://infoflow.cloud`

    Post summary

    The text announces the discovery of CVE-2026-5122 in osrg GoBGP (up to 4.3.0) affecting the DecodeFromBytes function, with no exploit or patch information provided.

    0000032
    65 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-5122 A security flaw has been discovered in osrg GoBGP up to 4.3.0. This affects the function DecodeFromBytes of the file pkg/packet/bgp/bgp.go of the component BGP OPEN Mes… https://www.cve.org/CVERecord?id=CVE-2026-5122

    Post summary

    CVE-2026-5122 is a newly identified security flaw in osrg GoBGP affecting the DecodeFromBytes function of the BGP OPEN component in versions up to 4.3.0, with no evidence of PoC, exploit, or current exploitation.

    00000260
    56.9K followersView on X
  • CyberDudeBivash® | Global Cybersecurity Company@cyberbivash
    Disclosure

    🚨 CYBERDUDEBIVASH SENTINEL APEX ALERT 🚨 Threat: CVE-2026-5122 - osrg GoBGP BGP OPEN Message bgp.go DecodeFromBytes access control Intel Report: https://ift.tt/Yg5xbzf

    Post summary

    Alert cites CVE‑2026‑5128, an access‑control flaw in GoBGP’s BGP OPEN Message decoder; no PoC, exploit code, or patch info is provided.

    0000041
    280 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Apposrggobgp---

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