Skip to main content
cvebuzz

CVE mentions, exploit signals, and PoC evidence in one fast public view.

CVE detail

CVE-2026-59251

Allocation of resources without limits in Erlang/OTP public_key certificate path validation allows a remote unauthenticated attacker to cause denial of service by sending a crafted X.509 certificate chain during the TLS handshake. During RFC 5280 policy processing in public_key:pkix_path_validation/3, the certificate policy tree maintained by pubkey_policy_tree grows without an upper bound. When a certificate chain contains M policies per certificate and K certificates, the tree grows on the order of M^K nodes because pubkey_policy_tree:add_leaves/2 and pubkey_policy_tree:add_leaf_siblings/2 extend the tree per policy per certificate. A modest chain with many policies per certificate is enough to pin BEAM schedulers and exhaust the node's memory, taking down the entire VM. The attacker only needs to be able to present a certificate chain to the victim, which is the normal precondition for a TLS handshake, so exploitation succeeds against any incoming or outgoing TLS connection that validates the peer's chain (the default for SSL/TLS clients and mutual-TLS servers). This is the same vulnerability class as OpenSSL's X509_verify_cert policy tree DoS. This vulnerability is associated with program files lib/public_key/src/pubkey_policy_tree.erl and program routines pubkey_policy_tree:add_leaves/2 and pubkey_policy_tree:add_leaf_siblings/2. This issue affects OTP from OTP 26.2 before OTP 29.0.4, OTP 28.5.0.4 and OTP 27.3.4.15, corresponding to public_key from 1.15 before 1.21.4, 1.20.3.4 and 1.17.1.5.

CVSS 8.7 · HighBuzz score 32.5

Buzz score

Why this CVE is surfacing

Buzz score total 32.5

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 19.5 · diversity 13.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Mention score
19.5
6 evidence mentions in the snapshot
Diversity score
13.0
4 sources across 2 categories
KEV score
0.0
No KEV entry observed
OTX score
0.0
0 OTX pulses
PoC score
0.0
0 repos · best confidence N/A
Best PoC traction
0
Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions
6
within the 30d window
Peak daily
6
highest bucket

Evidence

Source links by recency

Newest mentions first
6 source links · newest first

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars
No public PoC repositories have been matched yet.

Related records

Similar CVEs

6 related CVEs with shared weakness or product evidence
  • CVE-2026-64646

    Next.js is a React framework for building full-stack web applications. In versions 13.0.0 through 15.5.20 and 16.0.0 through 16.2.10, requests targeting Next.js applications using…

    CVSS 6.3 · Medium
    5 mentions
  • CVE-2026-42792

    Improper Handling of Exceptional Conditions vulnerability in Erlang OTP erts (epmd) allows an unauthenticated remote attacker to permanently terminate the Erlang Port Mapper Daemo…

    CVSS 6.3 · Medium
    5 mentions
  • CVE-2026-10600

    Mattermost versions 11.8.x <= 11.8.0, 11.7.x <= 11.7.3, 11.6.x <= 11.6.5, 10.11.x <= 10.11.20 fail to bound the time and resource consumption of server-side document content extra…

    CVSS 4.3 · Medium
    1 mention
  • CVE-2026-58389

    Allocation of Resources Without Limits or Throttling vulnerability in Apache Thrift Rust bindings. This issue affects Apache Thrift: before 0.24.0. Users are recommended to upgr…

    CVSS 8.7 · High
    3 mentions
  • CVE-2026-55968

    Inefficient Algorithmic Complexity, Allocation of Resources Without Limits or Throttling vulnerability in Apache Thrift Node.js bindings. This issue affects Apache Thrift: before…

    CVSS 8.7 · High
    3 mentions
  • CVE-2026-45112

    Allocation of Resources Without Limits or Throttling vulnerability in Apache Thrift Java bindings. This issue affects Apache Thrift: from 0.19.0 before 0.24.0. Users are recomme…

    CVSS 6.9 · Medium
    3 mentions