CVE-2026-59696 Affecting erlang package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published4 Sept 2026
- disclosed1 Sept 2026
Introduced: 1 Sep 2026
CVE-2026-59696 (opens in a new tab)How to fix?
There is no fixed version for Echo:latest erlang.
NVD Description
Note: Versions mentioned in the description apply only to the upstream erlang package and not the erlang package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
Improper Validation of Specified Quantity in Input vulnerability in Erlang/OTP stdlib allows a remote attacker to degrade availability by supplying a URI whose port component is a very long run of digits.
uri_string:get_port/1 passes the port substring to binary_to_integer/1 with no length bound, catching only error:badarg, so a syntactically valid port of up to roughly 1.26 million digits converts successfully and costs the calling process hundreds of milliseconds of arbitrary-precision arithmetic. The conversion is reached from every authority-parsing path in uri_string:parse/1, including the host, registered-name, and IPv4 and IPv6 forms. parse/1 is the documented interface for parsing URIs, so any application that parses an attacker-supplied URI is exposed without further configuration. The conversion function is documented to accept integers of any size, so bounding the input is the caller's responsibility.
This issue affects OTP from OTP 21.0 before OTP 27.3.4.17, from OTP 28.0 before OTP 28.5.0.6, and from OTP 29.0 before OTP 29.0.6, corresponding to stdlib from 3.5 before 6.2.2.5, from 7.0 before 7.3.0.2, and from 8.0 before 8.0.4.
References
- https://advisory.echohq.com/cve/CVE-2026-59696
- https://cna.erlef.org/cves/CVE-2026-59696.html
- https://github.com/erlang/otp/commit/aba0fe8c2d700bf4ac94607cf7f00e53bbe4042d
- https://github.com/erlang/otp/commit/e3be1cfe9f6cedd0cd20d9905e05601dfb31c8aa
- https://github.com/erlang/otp/security/advisories/GHSA-8qw4-2chm-mvj2
- https://osv.dev/vulnerability/EEF-CVE-2026-59696
- https://www.erlang.org/doc/system/versions.html#order-of-versions