CVE-2026-69664
httpd parks a request worker indefinitely on a malformed chunk size sent after the headers
02 Description
httpd parks a request worker indefinitely on a malformed chunk size sent after the headers
03 Exploitation and scoring
- Exploitation
- Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
- SSVC decision
- ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.94% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 61.0% of scored records. A rank, not a probability.
- NVD base score
- 8.7 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- NVD analysis status
- Deferred. NVD last modified this record on 2026-09-22.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-09-01 14:59Z1 MO AGO
- Last updated
- 2026-09-22 09:10Z1 MO AGO
- Reserved
- 2026-08-17
- Assigning CNA
- EEF
- Record state
- PUBLISHED
- Severity
- High (CVSS 8.7)
- CNA CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- Weaknesses
- CWE-772Missing Release of Resource after Effective LifetimeBase
- Data version
- 5.2
- Document digest
- 4a1ee6ce5ae318bd15cc190d2cb9783f730e86520cae52dc7e3639fcc4300fa4
05 Affected products
06 References
- github.comGitHub Advisoryhttps://github.com/erlang/otp/security/advisories/GHSA-mr35-8h7w-w3gq
- cna.erlef.orgEEF CNA record for CVE-2026-69664https://cna.erlef.org/cves/CVE-2026-69664.html
- osv.devOSV record EEF-CVE-2026-69664https://osv.dev/vulnerability/EEF-CVE-2026-69664
- www.erlang.orgErlang/OTP version orderinghttps://www.erlang.org/doc/system/versions.html#order-of-versions
- github.comIntroducing commit 77acb47 in erlang/otphttps://github.com/erlang/otp/commit/77acb473d8f056f6f534395f131c6e45693797f0
- github.comFix commit a3adf63 in erlang/otphttps://github.com/erlang/otp/commit/a3adf63078438c86527d704e23282b7721d8ca12
- github.comFix commit df1a9ca in erlang/otphttps://github.com/erlang/otp/commit/df1a9ca4666e2fdfc44886bfaae76de086d803f6
- github.comFix commit bd4e743 in erlang/otphttps://github.com/erlang/otp/commit/bd4e74348c6be8a49f060da6fd48d43f3a960292
07 Fixed in
Debian 12
- erlang No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- erlang Fixed in 1:27.3.4.1+dfsg-1+deb13u4
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- erlang Fixed in 1:29.0.6+dfsg-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- erlang Fixed in 1:24.2.1+dfsg-1ubuntu0.7
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- erlang Fixed in 1:25.3.2.8+dfsg-1ubuntu4.7
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.04 LTS
- erlang Fixed in 1:27.3.4.6+dfsg-1ubuntu0.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 14.04 LTS
- erlang Fixed in 1:16.b.3-dfsg-1ubuntu2.2+esm2Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- erlang Fixed in 1:18.3-dfsg-1ubuntu3.1+esm3Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 18.04 LTS
- erlang Fixed in 1:20.2.2+dfsg-1ubuntu2+esm3Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 20.04 LTS
- erlang Fixed in 1:22.2.7+dfsg-1ubuntu0.5+esm2Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.