DEBIAN-CVE-2026-59251

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Source

https://security-tracker.debian.org/tracker/CVE-2026-59251

Import Source

https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-59251.json

JSON Data

https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-59251

Upstream

CVE-2026-59251

Published

2026-07-27T16:18:03Z

Modified

2026-09-14T17:03:21Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Summary

[none]

Details

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.

References

https://security-tracker.debian.org/tracker/CVE-2026-59251

Affected packages

Debian:12 / erlang

Package

Name: erlang
Purl: pkg:deb/debian/erlang?arch=source&distro=bookworm

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

1:25.*

1:25.2.3+dfsg-1

1:25.2.3+dfsg-1+deb12u1

1:25.2.3+dfsg-1+deb12u2

1:25.2.3+dfsg-1+deb12u3

1:25.2.3+dfsg-1+deb12u4

1:25.3.2.8+dfsg-1

1:25.3.2.10+dfsg-1

1:25.3.2.10+dfsg-2

1:25.3.2.11+dfsg-1

1:25.3.2.12+dfsg-1

1:25.3.2.12+dfsg-2

1:25.3.2.12+dfsg-3

1:26.*

1:26.0~rc2+dfsg-1

1:26.0~rc3+dfsg-1

1:26.0+dfsg-1

1:26.0.1+dfsg-1

1:26.0.2+dfsg-1

1:26.1.2+dfsg-1

1:26.2.1+dfsg-1

1:26.2.4+dfsg-1

1:27.*

1:27.0~rc3+dfsg-1

1:27.0~rc3+dfsg-2

1:27.0~rc3+dfsg-3

1:27.0~rc3+dfsg-4

1:27.0+dfsg-1

1:27.0.1+dfsg-1

1:27.0.1+dfsg-2

1:27.0.1+dfsg-3

1:27.1.2+dfsg-1

1:27.2+dfsg-1

1:27.2+dfsg-2

1:27.2+dfsg-3~exp1

1:27.2.1+dfsg-1

1:27.2.1+dfsg-2

1:27.2.2+dfsg-1

1:27.2.3+dfsg-1

1:27.2.4+dfsg-1

1:27.3+dfsg-1

1:27.3.1+dfsg-1

1:27.3.2+dfsg-1

1:27.3.3+dfsg-1

1:27.3.4+dfsg-1

1:27.3.4.1+dfsg-1

1:27.3.4.3+dfsg-1

1:27.3.4.4+dfsg-1

1:27.3.4.6+dfsg-1

1:27.3.4.8+dfsg-1

1:27.3.4.9+dfsg-1

1:27.3.4.10+dfsg-1

1:27.3.4.11+dfsg-1

1:27.3.4.11+dfsg-2

1:27.3.4.11+dfsg-3

1:27.3.4.11+dfsg-4

1:27.3.4.11+dfsg-5

1:27.3.4.11+dfsg-6

1:27.3.4.11+dfsg-7

1:27.3.4.12+dfsg-1

1:28.*

1:28.0+dfsg-1

1:28.0.1+dfsg-1

1:28.0.2+dfsg-1

1:28.0.4+dfsg-1

1:28.1.1+dfsg-1

1:28.2+dfsg-1

1:28.3+dfsg-1

1:28.3.1+dfsg-1

1:29.*

1:29.0~rc1+dfsg-1

1:29.0~rc1+dfsg-2

1:29.0~rc2+dfsg-1

1:29.0~rc3+dfsg-1

1:29.0~rc3+dfsg-2

1:29.0~rc3+dfsg-3

1:29.0~rc3+dfsg-4

1:29.0+dfsg-1

1:29.0+dfsg-2

1:29.0.1+dfsg-1

1:29.0.2+dfsg-1

1:29.0.3+dfsg-1

1:29.0.4+dfsg-1

1:29.0.6+dfsg-1

Ecosystem specific

{
    "urgency":  "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-59251.json"

Debian:13 / erlang

Package

Name: erlang
Purl: pkg:deb/debian/erlang?arch=source&distro=trixie

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

1:27.3.4.1+dfsg-1+deb13u3

Affected versions

1:27.*

1:27.3.4.1+dfsg-1

1:27.3.4.1+dfsg-1+deb13u1

1:27.3.4.1+dfsg-1+deb13u2

Ecosystem specific

{
    "urgency":  "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-59251.json"

Debian:14 / erlang

Package

Name: erlang
Purl: pkg:deb/debian/erlang?arch=source&distro=forky

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

1:29.0.4+dfsg-1

Affected versions

1:27.*

1:27.3.4.1+dfsg-1

1:27.3.4.3+dfsg-1

1:27.3.4.4+dfsg-1

1:27.3.4.6+dfsg-1

1:27.3.4.8+dfsg-1

1:27.3.4.9+dfsg-1

1:27.3.4.10+dfsg-1

1:27.3.4.11+dfsg-1

1:27.3.4.11+dfsg-2

1:27.3.4.11+dfsg-3

1:27.3.4.11+dfsg-4

1:27.3.4.11+dfsg-5

1:27.3.4.11+dfsg-6

1:27.3.4.11+dfsg-7

1:27.3.4.12+dfsg-1

1:28.*

1:28.0+dfsg-1

1:28.0.1+dfsg-1

1:28.0.2+dfsg-1

1:28.0.4+dfsg-1

1:28.1.1+dfsg-1

1:28.2+dfsg-1

1:28.3+dfsg-1

1:28.3.1+dfsg-1

1:29.*

1:29.0~rc1+dfsg-1

1:29.0~rc1+dfsg-2

1:29.0~rc2+dfsg-1

1:29.0~rc3+dfsg-1

1:29.0~rc3+dfsg-2

1:29.0~rc3+dfsg-3

1:29.0~rc3+dfsg-4

1:29.0+dfsg-1

1:29.0+dfsg-2

1:29.0.1+dfsg-1

1:29.0.2+dfsg-1

1:29.0.3+dfsg-1

Ecosystem specific

{
    "urgency":  "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-59251.json"