CVE-2026-35458 json
Gotenberg has a ReDoS via extraHttpHeaders scope feature
published 2026-04-07 7 mo ago modified 2026-06-25 4 mo ago also GHSA-fmwg-qcqh-m992 , GO-2026-5372 , EUVD-2026-19651
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 44%
- public exploits
- 0
- none known
Summary
Gotenberg is an API for converting document formats. In 8.29.1 and earlier, Gotenberg uses dlclark/regexp2 to compile user-supplied scope patterns without setting a proper timeout. Users with access to features using this logic can hang workers indefinitely.
Patch / fix
- go github.com/gotenberg/gotenberg/v8 8.30.0
- thecodingmachine gotenberg 8.29.1
- govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
opensuse advisories openSUSE-SU-2026:21483-1
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- total
- Assessed
- 7 mo ago
Exploit prediction
0.52% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/gotenberg/gotenberg/security/advisories/GHSA-fmwg-qcqh-m992 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.7 | 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 |
| CISA ADP | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 4.0 | 8.7 | 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 |
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/gotenberg/gotenberg/v8 | <8.30.0 |
8.30.0 |
| go | github.com/gotenberg/gotenberg/v7 | all versions |
no fix listed |
Affected products
- gotenberg gotenberg
Classification
- Weakness
-
- CWE-1333 Inefficient Regular Expression Complexity
References
-
github.com
/gotenberg/gotenberg/commit/cfb48d9af48cb236244eabe5c67fe1d30fb3fe25
web
-
github.com
/gotenberg/gotenberg/security/advisories/GHSA-fmwg-qcqh-m992
web, exploit, vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-35458
advisory
-
github.com
/gotenberg/gotenberg
package
Sources
- CVE List CVE-2026-35458
- GitHub Advisory GHSA-fmwg-qcqh-m992
- NVD CVE-2026-35458
- OSV GO-2026-5372
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.