HIGH
redirect() in bottle.py in bottle 0.12.10 doesn't filter a "\r\n" sequence, which leads to a CRLF attack, as demonstrated by a redirect("233\r\nSet-Cookie: name=salt") call
Published Dec 16, 2016
7.1
HIGHCVSS 4.0
EPSS 1.76%
Description
redirect() in bottle.py in bottle 0.12.10 doesn't filter a "\r\n" sequence, which leads to a CRLF attack, as demonstrated by a redirect("233\r\nSet-Cookie: name=salt") call.
Affected products
No data.
Configuration 2
- 8.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
7.1 HIGH GHSA
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Attack Vector Network
Attack Complexity Low
Attack Requirements None
Privileges Required None
User Interaction Passive
Vulnerable System Confidentiality None
Vulnerable System Integrity High
Vulnerable System Availability None
Subsequent System Confidentiality None
Subsequent System Integrity None
Subsequent System Availability None
No CVSS v3.1 score for this CVE.
6.5 MEDIUM NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact None
Integrity Impact High
Availability Impact None
4.3 MEDIUM NVD
AV:N/AC:M/Au:N/C:N/I:P/A:N
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.76% 0.01761
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01761
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.76% (0.01761) | 77.18th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.76% (0.01761) | 75.02th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.09% (0.01087) | 76.36th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.20% (0.00199) | 58.78th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.20% (0.00199) | 56.00th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.02% (0.01018) | 38.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.02% (0.01018) | 36.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
Weaknesses (1)
References (9)
- http://www.debian.org/security/2016/dsa-3743 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.securityfocus.com/bid/94961 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://github.com/advisories/GHSA-j6f7-hghw-g437 Advisory
- https://github.com/bottlepy/bottle/commit/6d7e13da0f998820800ecb3fe9ccee4189aefb54 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://github.com/bottlepy/bottle/commit/78f67d51965db11cb1ed0003f1eb7926458b5c2c
- https://github.com/bottlepy/bottle/issues/913 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://github.com/pypa/advisory-database/tree/main/vulns/bottle/PYSEC-2016-24.yaml
- https://nvd.nist.gov/vuln/detail/CVE-2016-9964
- https://web.archive.org/web/20170214030628/http://www.securityfocus.com/bid/94961
| Link | Providers | Tags |
|---|---|---|
| http://www.debian.org/security/2016/dsa-3743 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| http://www.securityfocus.com/bid/94961 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://github.com/advisories/GHSA-j6f7-hghw-g437 | Advisory | |
| https://github.com/bottlepy/bottle/commit/6d7e13da0f998820800ecb3fe9ccee4189aefb54 | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory | |
| https://github.com/bottlepy/bottle/commit/78f67d51965db11cb1ed0003f1eb7926458b5c2c | ||
| https://github.com/bottlepy/bottle/issues/913 | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory | |
| https://github.com/pypa/advisory-database/tree/main/vulns/bottle/PYSEC-2016-24.yaml | ||
| https://nvd.nist.gov/vuln/detail/CVE-2016-9964 | ||
| https://web.archive.org/web/20170214030628/http://www.securityfocus.com/bid/94961 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Dec 16, 2016
Updated Aug 6, 2024
Reserved Dec 16, 2016
Link CVE-2016-9964
CISA Vulnrichment
GHSA-J6F7-HGHW-G437 Updated n/a