CVE-2026-74835
inets httpd ignores chunked body-size limits, allowing remote code execution.
Is CVE-2026-74835 being exploited?
Not confirmed. CVE-2026-74835 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.33% probability of exploitation in the next 30 days.
How severe is CVE-2026-74835?
CVE-2026-74835 is rated High with a CVSS score of 8.7. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-74835?
Yes. A fix has been recorded for CVE-2026-74835. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-74835 affect?
CVE-2026-74835 affects Erlang/OTP from 17.0 before 27.3.4.17, Erlang/OTP 28.0 before 28.5.0.6, Erlang/OTP 29.0 before 29.0.6, inets from 5.10 before 9.3.2.7, and 2 further products or versions. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-74835?
Upgrade to patched OTP/inets releases and block or filter untrusted chunked requests.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution or service crash via crafted chunked HTTP requests that bypass configured body-size limits.
Patch when possible
- affected< 17.0
- affected>= 17.0 and < 27.3.4.17
- affected>= 28.0 and < 28.5.0.6
- affected>= 29.0 and < 29.0.6
- affected< 5.10
- affected>= 5.10 and < 9.3.2.7
- affected>= 9.4 and < 9.6.2.3
- affected>= 9.7 and < 9.7.2
- affected>= 84adefa331c4159d432d22840663c38f155cd4c1 and < *
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.